Whiplash InjuriesPrognosisNeck PainInsurance, AccidentAccidents, TrafficNeck MusclesCornell Medical IndexNeck InjuriesSaskatchewanAccessory NerveHypesthesiaCervical VertebraeAccelerationAccessory Nerve DiseasesWounds and InjuriesVertigoCraniocerebral TraumaHeadacheTreatment OutcomeDizzinessPhysical Therapy ModalitiesFollow-Up StudiesBrain InjuriesTime FactorsDisability Evaluation