Diagnosed with Grade I or Grade II WAD
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Report an average neck pain since the accident of at least 3 on a 0–10 "Numerical Rating Scale" (NRS)
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Able to give written informed consent and complete interviews in English (translators will be available to assist the participant if she/he experiences difficulty understanding specific items on the questionnaire)
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Make an insurance claim for physical injury and enroll in trial within 21 days of the traffic collision
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Exclusion criteria
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Fracture/dislocation of the spine or any major bone
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Head trauma associated with loss of consciousness
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Past whiplash or work-related neck injury within the year prior to their current injury
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Active systemic diseases (cancer, inflammatory arthritis, disorders of central nervous system)
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Previous neck surgery
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Received treatment from a physiotherapist or chiropractor for neck pain in the three months preceding the motor vehicle collision
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Individuals who do not reside or work in the Greater Toronto, Mississauga, Burlington, Cambridge or Kitchener areas
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