title: Risk of vertebrobasilar stroke and chiropractic care: results of a population based case control and case-crossover study.
authors.forename: Michael
authors.initials: M
authors.lastname: Haynes
mesh_terms: D016022:Case-Control Studies; D018592:Cross-Over Studies; D006261:Headache / Q000628:therapy*; D006801:Humans; D026882:Manipulation, Chiropractic / Q000009:adverse effects*; D019547:Neck Pain / Q000628:therapy*; D011320:Primary Health Care; D018570:Risk Assessment; D012307:Risk Factors; D020521:Stroke / Q000209:etiology*; D016896:Treatment Outcome; D014715:Vertebrobasilar Insufficiency / Q000209:etiology*