Whiplash InjuriesNeck PainNeck MusclesHeadacheInsurance, AccidentAccidents, TrafficAnti-Dyskinesia AgentsAcupuncture AnalgesiaCornell Medical IndexHeadache DisordersNeck InjuriesChronic DiseaseSomatoform DisordersSaskatchewanAccessory NerveHypesthesiaCervical VertebraeTension-Type HeadacheDisability EvaluationAccelerationCluster HeadachePain MeasurementAccessory Nerve DiseasesVertigoWounds and InjuriesCraniocerebral TraumaDizzinessVascular HeadachesPhysical Therapy Modalities