1. Annis JA, Finlay DB, Allen MJ, Barnes MR. A review of cervicalspine radiographs in casualty patients. Br J Radiol 1987;60:1059-61.

  2. Barancik JI, Kramer CF, Thode HC. Epidemiology of motor vehicle injuries in Suffolk County, New York before and after enactment of the New York State Seat belt use law. Washington (DC): US Department of Transportation, National Highway Traffic Safety Administration; 1989 June. DOT HS 807 638.

  3. Barnsley L, Lord S, Bogduk N. Comparative local anaesthetic blocks in the diagnosis of cervical zygapophysial joint pain. Pain 1993;55:99-106.

  4. Barnsley L, Lord SM, Wallis BJ, Bogduk N. Lack of effect of intraarticular corticosteroids for chronic pain in the cervical zygapophyseal joints. N Engl J Med 1994;330:1047-50.

  5. Björnstig U, Hildingsson C, Toolanen G. Softtissue injury of the neck in a hospital based material. Scand J Soc Med 1990;18:263-7.

  6. Boden SD, McCowin PR, Davis DO, Dina TS, Mark AS, Wiesel S. Abnormal magneticresonance scans of the cervical spine in asymptomatic subjects. J Bone Joint Surg Am 1990;72:1178-84.

  7. Bodiwala GG, Thomas PD, Otubushin A. Protective effect of rearseat restraints during car collisions. Lancet 1989;1:369-71.

  8. Bouchard H, Favreau G. Coût des médicaments pour entorse vertébrale subie lors d'un accident de la route. Can Med Assoc J 1985;133:636-7.

  9. Brodin H. Cervical pain and mobilization. Int J Rehabil Res 1984;7:190-1.

  10. Brodin H. Cervical pain and mobilization. Journal of Manual Medicine 1985;2:18-22.

  11. Burke JP, Orton HP, West J, Strachan IM, Hockey MS, Ferguson DG. Whiplash and its effect on the visual system. Graefes Arch Clin Exp Ophthalmol 1992;230:335-9.

  12. Byrn C, Olsson I, Falkheden L, Lindh M, Hösterey U, Fogelberg M, et al. Subcutaneous sterile water injections for chronic neck and shoulder pain following whiplash injuries. Lancet 1993;341:449-52.

  13. Carlsson G, Nilsson S, Nilsson-Ehle A, Norin H, Ysander L, Örtengren R. Neck injuries in rear-end car collisions: biomechanical considerations to improve head restraints. Proceedings of the International IRCOBI/AAAM Conference on the Biomechanics of Injury; 1985 June 24-26; Göteborg (Sweden). Bron (France): IRCOBI,1985:277-89.

  14. Cassidy JD, Lopes AA, YongHing K. The immediate effect of manipulation versus mobilization on pain and range of motion in the cervical spine: a randomized controlled trial. J Manipulative Physiol Therap 1992;15:570-5.

  15. Cassidy JD, Lopes AA, Yong-Hing K. The immediate effect of manipulation versus mobilization on pain and range of motions in the cervical spine: a randomized controlled trial [letter]. J Manipulative Physiol Therap 1993;16:279-80.

  16. Charron L, Saighi R. Profil des blessures des victimes d'accidents de la route. Québec: Société de l'assurance automobile du Québec, 1992 février.

  17. Colachis SC, Strohm BR, Ganter EL. Cervical spine motion in normal women: radiographic study of effect of cervical collars. Arch Phys Med Rehabil 1973;54:161-9.

  18. Deans GT, Magalliard JN, Kerr M, Rutherford WH. Neck sprain - a major cause of disability following car accidents. Injury 1987;18:10-2.

  19. Du Mouchel W, Williams AF, Zador P. Raising the alcohol purchase age: its effects on fatal motor vehicle crashes in twentysix states. Journal of Legal Studies 1987;16:249-66.

  20. Dvorak J, Froehlich D, Penning L, Baumgartner H, Panjabi MM. Functional radiographic diagnosis of the cervical spine: flexion/extension. Spine 1988;13:748-55.

  21. Elvik R. The effects on accidents of compulsory use of daytime running lights for cars in Norway. Accid Anal Prev 1993;25:383-98.

  22. European Transport Safety Council. Reducing traffic injuries through vehicle safety improvements - the role of car design. Technical annexes. Brussels: European Transport Safety Council, 1993.

  23. Federal Highway Administration. Synthesis of safety research related to traffic control and roadway elements. Washington: US Department of Transportation, 1982.

  24. Fisher SV, Bowar JF, Awad EA, Gullickson G. Cervical orthoses effect on cervical spine motion: roentgenographic and goniometric method of study. Arch Phys Med Rehabil 1977;58:109-15.

  25. Flannagan M, Sivak M. An improved braking indicator. Warrendale (PA): Society of Automotive Engineers, 1989. SAE Technical Paper No 890189.

  26. Fletcher SW, Spitzer WO. Approach of the Canadian Task Force to the Periodic Health Examination [editorial note]. Ann Int Med 1980;92:253-4.

  27. Foley-Nolan D, Barry C, Coughlan RJ, O'Connor P, Roden D. Pulsed high frequency (27MHz) electromagnetic therapy for persistent neck pain. A double blind, placebocontrolled study of 20 patients. Orthopedics 1990;13:445-51.

  28. Foley-Nolan D, Moore K, Codd M, Barry C, O'Connor P, Coughlan RJ. Low energy high frequency pulsed electromagnetic therapy for acute whiplash injuries. A double blind randomized controlled study. Scand J Rehabil Med 1992;24:51-9.

  29. Fournier F, Painchaud J. Caractéristiques des victimes de la route ayant subi une entorse cervicale ou une fracture de la colonne cervicale, 1978-1985. Québec: Régie de l'assurance automobile du Québec, 1987 sept.

  30. Foust DR, Chaffin DB, Snyder RG, Baum JK. Cervical range of motion and dynamic response and strength of cervical muscles. In: Proceedings of the Seventeenth STAPP Car Crash Conference; 1973 Nov 12-13; Oklahoma City (OK). New York (NY): Society of Automotive Engine, 1973:285-308.

  31. Freemyer B, Knopp R, Piche J, Wales L, Williams J. Comparison of fiveview and threeview cervical spine series in the evaluation of patients with cervical trauma. Ann Emerg Med 1989;18:818-21.

  32. Garber S, Graham JD. The effects of the new 65 mile-per-hour speed limit on rural highway fatalities; a state-by-state analysis. Accid Anal Prev 1990;22:137-49.

  33. General Accounting Office. Drinkingage laws: an evaluation synthesis of their impact on higway safety. Report to the Chairman, Subcommittee on Investigations and Oversight, Committee on Public Works and Transportation, House of Representatives. Washington (DC): US Congress, 1987.

  34. Girard N. Statistiques descriptives sur la nature des blessures. Québec: Régie de l'assurance automobile du Québec, Direction des services médicaux et de la réadaptation, 1989 avr. Internal Document.

  35. Giroux M. Les blessures à la colonne cervicale: importance du problème. Le Médecin du Québec, sept 1991:22-6.

  36. Gustafsson H, Nygren A, Tingvall C. An epidemiological study of injuries to children as car passengers in road traffic accidents. Acta Paediatr Scand Suppl 1987;339(I):1-25.

  37. Heise AP, Laskin DM, Gervin AS. Incidence of temporomandibular joint symptoms following whiplash injury. J Oral Maxillofac Surg 1992;50:825-8.

  38. Helliwell PS, Evans PF, Wright V. The straight cervical spine: does it indicate muscle spasm? J Bone Joint Surg 1994;76B:103-6.

  39. Hildingsson C, Toolanen G. Outcome after softtissue injury of the cervical spine. A prospective study of 93 caraccident victims. Acta Orthop Scand 1990;61:357-9.

  40. Hingson R, Merrigan D, Heeren T. Effects of Massachusetts raising its legal drinking age from 18 to 20 on deaths from teenage homicide, suicide, and nontraffic accidents. Pediatr Clin North Am 1985;32:221-32.

  41. Hingson RW, Howland J, Levenson S. Effects of legislative reform to reduce drunken driving and alcoholrelated traffic fatalities. Public Health Rep 1988;103:659-67.

  42. Hirsch SA, Hirsch PJ, Hiramoto H, Weiss A. Whiplash syndrome. Fact or fiction? Orthop Clin North Am 1988;19:791-5.

  43. Hoffman JR, Schriger DL, Mower W, Luo JS, Zucker M. Lowrisk criteria for cervicalspine radiography in blunt trauma: a prospective study. Ann Emerg Med 1992;21:1454-60.

  44. Hong CZ, Lin JC, Bender LF, Schaeffer JN, Meltzer RJ, Causin P. Magnetic necklace: its therapeutic effectiveness on neck and shoulder pain. Arch Phys Med Rehabil 1982;63:462-6.

  45. Insurance Bureau of Canada. Prevention measures for young or novice drivers: key findings and implications from an international symposium, 1991:24-9.

  46. Jackson BL, Barker W, Bentz J, Gambale AG. Inter and intraexaminer reliability of the upper cervical Xray marking system: a second look. J Manipulative Physiol Ther 1987;10:157-63.

  47. Jacobs LM, Schwartz R. Prospective analysis of acute cervical spine injury: a methodology to predict injury. Ann Emerg Med 1986;15:44-9.

  48. Jaffe DM, Binns H, Radkowski MA, Barthel MJ, Engelhard HH. Developing a clinical algorithm for early management of cervical spine injury in child trauma victims. Ann Emerg Med 1987;16:270-6.

  49. Johnson RM, Hart DL, Simmons EF, Ramsby GR, Southwick WO. Cervical orthoses a study comparing their effectiveness in restricting cervical motion in normal subjects. J Bone Joint Surg Am 1977;59:332-9.

  50. Jones NE, Pieper CF, Robertson LS. The effect of the legal drinking age on fatal injuries of adolescents and young adults. Am J Public Health 1992;82:112-5.

  51. Kahane CJ. An evaluation of head restraints federal motor vehicle safety standard 202. Washington (DC): US Dept of Transportation, National Highway Traffic Safety Administration, 1982. NHTSA Technical Report DOT HS-806 108.

  52. Kelsey JL, Githens PB, Walter SD, Southwick WO, Wil U, Holford TR, et al. An epidemiological study of acute prolapsed cervical intervertebral disc. J Bone Joint Surg Am 1984;66:907-14.

  53. Kreipke DL, Gillespie KR, McCarthy MC, Mail JT, Lappas JC, Broadie TA. Reliability of indications for cervical spine films in trauma patients. J Trauma 1989;29:1438-9.

  54. Laberge-Nadeau C, Tao XT, Maag U. Neck injuries amongst motor vehicle occupants involved in a collision. Montreal (PQ): University of Montreal, Centre for Research on Transportation; 1993 March. Publication #885.

  55. Lawrence V, Matthai W, Hartmaier S. Comparative safety of high-osmolality and low-osmolality radiographic contrast agents. Report of a multidisciplinary working group. Invest Radiol 1992;27:2-27.

  56. Livingston M. Whiplash injury: some continuing problems. Humane ¬ Med ICCM 1993;9:274-81.

  57. Lövsund P, Nygren A, Salen B, Tingvall C. Neck injuries in rear end collisions among front and rear seat occupants. In: Proceedings of the International IRCOBI Conference on the Biomechanics of Impacts; 1988 Sept 14-16; Bergisch Gladbach (FRG). Bron (France): IRCOBI, 1988:319-25.

  58. Maag U, Tao XT, Laberge-Nadeau C. Neck injury patterns of car occupants and estimation of injury costs. In: Proceedings of the Canadian Multidisciplinary Road Safety Conference VIII; 1993 June 14-16; Saskatoon (SK). Saskatoon (SK): Saskatchewan Dept of Highways and Transportation, 1993:325-34.

  59. Mäkelä M, Heliövaara M, Sievers K, Impivaara O, Knekt P, Aromaa A. Prevalence, determinants, and consequences of chronic neck pain in Finland. Am J Epidemiol 1991;134:1356-67.

  60. Margolis RB, Tail RC, Krause SJ. A rating system for use with patient pain drawings. Pain. 1986;24:57-65

  61. McConnell WE, Howard PR, Guzman HM, Bomar JB, Raddin JH, Benedict JV, et al. Analysis of human test subject kinematic responses to low velocity rear end impacts. In: Vehicle and Occupant Kinematics: Simulation and Modeling (SP-975). International Congress and Exposition; 1993 March 1-5; Detroit (MI). Warrendale (PA): Society for Automotive Engineers, 1993:21-30. SAE Technical Paper Series 930889.

  62. McKinney LA. Early mobilisation and outcome in acute sprains of the neck. BMJ 1989;299:1006-8.

  63. McKinney LA, Dornan JO, Ryan M. The role of physiotherapy in the management of acute neck sprains following roadtraffic accidents. Arch Emerg Med 1989;6:27-33.

  64. Mealy K, Brennan H, Fenelon GC. Early mobilization of acute whiplash injuries. BMJ 1986;292:656-7.

  65. Mendelsohn RA, Huelke DF. Anatomy, injury, and biomechanics of the cervical spine. In: American Association for Automotive Medicine and International Research Council on Biomechanics of Impacts. The biomechanics of impact trauma. Des Plaines, Illinois: American Association for Automotive Medicine, 1987:125-64.

  66. Mercer GW. The relationships among driving while impaired charges, police drinkingdriving roadcheck activity, media coverage, and alcoholrelated casualty traffic accidents. Accid Anal Prev 1985;17:467-74.

  67. Mills H, Horne G. Whiplashmanmade disease? N Z Med J 1986;99:373-4.

  68. Mirvis SE, Diaconis JN, Chirico PA, Reiner BI, Joslyn JN, Militello P. Protocoldriven radiologic evaluation of suspected cervical spine injury: efficacy study. Radiology 1989;170:831-4.

  69. Nansel D, Peneff A, Cremata E, Carlson J. Time course considerations for the effects of unilateral lower cervical adjustments with respect to the amelioration of cervical lateralflexion passive endrange asymmetry. J Manipulative Physiol Ther 1990;13:297-304.

  70. National Highway Traffic Safety Administration. Reducing highway crashes through administrative license revocation. Washington. (DC): U.S. Dept of Transportation, National Highway Transportation Safety Administration, 1986. DOT Publication No. DOT HS-806 921.

  71. National Highway Traffic Safety Administration. Validation of the reduction of rearend collisions by a highmounted auxiliary stoplamp. Washington (DC): National Highway Traffic Safety Administration, 1980.

  72. Neifeld GL, Keene JG, Hevesy G, Leikin J, Proust A, Thisted RA. Cervical injury in head trauma. J Emerg Med 1988;6:203-7.

  73. Norris SH, Watt I. The prognosis of neck injuries resulting from rearend vehicle collisions. J Bone Joint Surg Br 1983;65:608-11.

  74. Nygren Å. Injuries to car occupants: some aspects of the interior safety of cars. Acta Otolaryngol Suppl (Stockh) 1984;395:1-164.

  75. Nygren Å, Gustafsson H, Tingvall C. Effects of different types of headrests in rearend collisions. In: Proceedings of the Tenth International Technical Conference on Experimental Safety Vehicles; 1985 July 1-4; Oxford (England). Washington (DC): US Dept of Transportation, National Highway Traffic Safety Administration, 1985:85-90.

  76. Olsnes BT. Neurobehavioural findings in whiplash patients with long-lasting symptoms. Acta Neurol Scand 1989;80:584-8.

  77. Pervanchon-Simonnet M. La conduite accompagnée: quelle évaluation? In: Tursz A, Souteyrand Y, Salmi LR, editors. Adolescence et risque. Paris: Syros, 1993:247-56.

  78. Petrie JP, Hazleman BL. A controlled study of acupuncture in neck pain. Br J Rheumatol 1986;25:271-5.

  79. Potvin L, Champagne F, LabergeNadeau C. Mandatory driver training and road safety: the Quebec experience. Am J Public Health 1988;78:1206-9.

  80. Preusser DF, Williams AF, Lund AK, Zador PL. City curfew ordinances and teenage motor vehicle injury. Accid Anal Prev 1990;22:391-7.

  81. Preusser DF, Williams AF, Zador PL, Blomberg RD. The effect of curfew laws on motor vehicle crashes. Law and Policy 1984;6:115-28.

  82. Radanov BP, Di Stefano G, Schnidrig A, Ballinari P. Role of psychosocial stress in recovery from common whiplash. Lancet 1991;338:712-5.

  83. Radanov BP, Hirlinger I, Di Stefano G, Valach L. Attentional processing in cervical spine syndromes. Acta Neurol Scand 1992;85:358-62.

  84. Radanov BP, Sturzenegger M, De Stefano G, Schnidrig A. Relationship between early somatic, radiological, cognitive and psychosocial findings and outcome during one-year follow-up in 117 patients suffering from common whiplash. Br J Rheumatol 1994;33:442-8.

  85. Radanov BP, Sturzenegger M, Di Stefano G, Schnidrig A, Aljinovic M. Factors influencing recovery from headache after common whiplash. BMJ 1993;307:652-5.

  86. Rheault W, Albright B, Byers C, Franta M, Johnson A, Skowronek M, et al. Intertester reliability of the cervical range of motion device. Journal of Orthopaedic and Sports Physical Therapy 1992;15:147-50.

  87. Roberge RJ, Wears RC, Kelly M, Evans TC, Kenny MA, Daffner RD, et al. Selective application of cervical spine radiography in alert victims of blunt trauma: a prospective study. J Trauma 1988;28:784-8.

  88. Robertson LS. Blood alcohol in fatally injured drivers and the minimum legal drinking age. J Health Polit Policy Law 1989;14:817-25.

  89. Robertson LS. Crash involvement of teenaged drivers when driver education is eliminated from high school. Am J Public Health 1980;70:599-603.

  90. Robertson LS. Injury Epidemiology. New York: Oxford University Press, 1992.

  91. Robertson LS. Patterns of teenaged driver involvement in fatal motor vehicle crashes: implications for policy choice. J Health Polit Policy Law 1981;6:303-14.

  92. Robertson LS, Zador PL. Driver education and fatal crash involvement of teenaged drivers. Am J Public Health 1978;68:959-65.

  93. Rosomoff HL, Fishbain DA, Goldberg M, Santana R, Rosomoff RS. Physical findings in patients with chronic intractable benign pain of the neck and/or back [see comments]. Pain 1989;37:279-87. Comment in: Pain 1989;39:364-5.

  94. Russ NW, Geller ES. Training bar personnel to prevent drunken driving: a field evaluation. Am J Public Health 1987;77:952-4.

  95. Salmi LR, Thomas H, Fabry JJ, Girard R. The effect of the 1979 French seatbelt law on the nature and severity of injuries to frontseat occupants. Accid Anal Prev 1989;21:589-94.

  96. Sistrom CL, Southall EP, Peddada SD, Shaffer HA Jr. Factors affecting the thickness of the cervical prevertebral soft tissues. Skeletal Radiol 1993;22:167-71.

  97. Slavin RE. Best evidence synthesis: an alternative to meta-analytic and traditional reviews. Educational Researchers 1986;15:5-11.

  98. Sobeco, Ernst and Young. Saskatchewan Government Insurance automobile injury study. Report to the Saskatchewan Government Insurance Office, March 1989.

  99. Société de l'assurance automobile du Québec (SAAQ). Direction de la statistique. Bilan 1991. Accidents, parc automobile, permis de conduire. Québec: SAAQ, 1992.

  100. Spitzer WO. Meta-meta-analysis: unanswered questions about aggregating data. J Clin Epidemiol 1991;44:103-7.

  101. Spitzer WO, Bayne JR, Charron KC, Fletcher SW, Frappier-Davignon L, Goldbloom RR, et al. The periodic health examination. Canadian Task Force on the Periodic Health Examination. Can Med Assoc J 1979;121:1193-254.

  102. Spitzer WO, Brouzes K, Hattwick MA, Hurwitz E, Kramer M, Kupper L, et al. Report of the New Brunswick Task Force on the Environment and Reye's syndrome. Clin Invest Med 1982;5:203-14.

  103. Spitzer WO, Lawrence V, Dales R, Hill G, Archer MC, Clark P, et al. Links between passive smoking and disease: a best evidence synthesis. A report of the Working Group on Passive Smoking. Clin Invest Med. 1990;13:17-42.

  104. Spitzer WO, Leblanc FE, Dupuis M, Abenhaim L, Belanger AY, Bloch R, et al. Scientific approach to the assessment and management of activity-related spinal disorders: a monograph for clinicians. Report of the Quebec Task Force on Spine Disorders. Spine 1987;12(7 Suppl):S1-S59.

  105. States JD. Soft tissue injuries of the neck. In: The human neck - anantomy, injury mechanisms, and biomechanics SP-438; Congress and Exposition; 1979 Feb 26-March 2; Detroit (MI). Warrendale (PA): Society of Automotive Engineers, 1979:37-43. SAE Paper 790135.

  106. States JD, Annechiarico RP, Good RG, Lieou J, Andrews M, Cushman L, et al. A time comparison study of the New York State safety belt use law utilizing hospital admission and police accident report information. Accid Anal Prev 1990;22:509-21.

  107. States JD, Balcerak JC, Williams JS, Morris At, Babcock W, Polivino R, et al. Injury frequency and head restraint effectiveness in rearend impact accidents. In: Proceedings of the Sixteenth STAPP Car Crash Conference; 1972 Nov 8-12; Detroit (MI). New York (NY): Society of Automotive Engineers, 1972:228-57.

  108. States JD, Korn MW, Masengill JB. The enigma of whiplash injury. N Y State J Med 1970;70:2971-8.

  109. Stewart JR. Statistical evaluation of the effectiveness of FMVSS 202: head restraints. Chapel Hill (NC): Highway Research Center, University of North Carolina, 1980. Task 3 Report 2:11A10. DOT HS 8 02014.

  110. Svensson MY, Lövsund, Håland I, Larsson S. The influence of seatback and headrestraint properties on the headneck motion during rearimpact. In: Proceedings of the IRCOBI International Conference on Biomechanics of Impacts; 1993 Sept 8-10; Eindhoven (The Netherlands). Bron (France): IRCOBI, 1993:395-406.

  111. Templeton PA, Young JW, Mirvis SE, Buddemeyer EU. The value of retropharyngeal soft tissue measurements in trauma of the adult cervical spine. Cervical spine soft tissue measurements [published erratum appears in Skeletal Radiol 1987;16:435]. Skeletal Radiol 1987;16:98-104.

  112. Tunbridge RJ. The long term effect of seat belt legislation on road user injury patterns. Crowthorne, Berkshire (UK): Transport and Road Research Laboratory, 1989. Research Report No 239.

  113. Van der Donk J, Schouten JS, Passchier J, Van Romunde LK, Valkenburg HA. The associations of neck pain with radiological abnormalities of the cervical spine and personality traits in a general population. J Rheumatol 1991;18:1884-9.

  114. Van Houten R, Van Houten F. The effects of a specific prompting sign on speed reduction. Accid Anal Prev 1987;19:115-7.

  115. Vernon H, Mior S. The neck disability index: a study of reliability and validity. J Manipulative Physiol Ther 1991;14:409-15.

  116. Vernon HT, Aker P, Aramenko M, Battershill D, Alepin A, Penner T. Evaluation of neck muscle strength with a modified sphygmomanometer dynamometer: reliability and validity. J Manipulative Physiol Ther 1992;15:343-9.

  117. Waller JA. Injury control: a guide to the causes and prevention of trauma. Lexington: Lexington Books, 1985a:11-38; 1985b:493-510.

  118. Warner CY, Strother CE, James MB, Decker RL. Occupant protection in rearend collisions: II. the role of seat back deformation in injury reduction. Society of Automotive Engineers Transactions Section 6, 912914 (p-251), 1991a:379-90.

  119. Warner CY, Strother CE, James MB, Perl TR, Decker RL. Occupant protection in rearend collisions: I. Safety priorities and seat belt effectiveness. Society of Automotive Engineers Transactions Section 6, 912913 (p-251),1991b:369-77.

  120. Weissner R, and Ensslen A. The headrest: a necessary safety feature for modern passenger cars. In: Proceedings of the International IRCOBI/AAAM Conference on the Biomechanics of Impacts; 1985 June 24-26; Göteborg (Sweden). Bron (France): IRCOBI, 1985:269-76.

  121. Williams AF, Karpf RS, Zador PL. Variations in minimum licensing age and fatal motor vehicle crashes. Am J Public Health 1983;73:1401-3.

  122. Youdas JW, Carey JR, Garrett TR. Reliability of measurements of cervical spine range of motion - comparison of three methods. Physical Therapy 1991;71:98-104.

  123. Young JW, Resnik CS, DeCandido P, Mirvis SE. The laminar space in the diagnosis of rotational flexion injuries of the cervical spine. AJR Am J Roentgenol 1989;152:103-7.

  124. Zador PL, Stein H, Shapiro S, Tarnoff P. Effect of signal timing on traffic flow and crashes at signalized intersections.Washington (DC): Insurance Institute for Highway Safety, 1984.

  125. Zylbergold RS, Piper MC. Cervical spine disorders. A comparison of three types of traction. Spine 1985;10:867-71.