title: False-negative extension/rotation pre-manipulative screening test on a patient with an atretic and hypoplastic vertebral artery.
authors.affiliation: Faculty of Kinesiology, University of Calgary, Alberta, Canada. westaway@telusplanet.net
authors.forename: M D
authors.initials: MD
authors.lastname: Westaway
authors.forename: P
authors.initials: P
authors.lastname: Stratford
authors.forename: B
authors.initials: B
authors.lastname: Symons
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000503:physiopathology*; D005188:False Negative Reactions; D005260:Female; D019416:Head Movements; D006801:Humans; D020393:Manipulation, Spinal / Q000379:methods* / Q000592:standards; D008403:Mass Screening; D011237:Predictive Value of Tests; D016059:Range of Motion, Articular; D012399:Rotation; D014057:Tomography, X-Ray Computed; D017585:Ultrasonography, Doppler, Transcranial; D014711:Vertebral Artery / Q000000981:diagnostic imaging / Q000293:injuries*; D014715:Vertebrobasilar Insufficiency / Q000000981:diagnostic imaging / Q000209:etiology*