title: In sickness and in health.
authors.forename: M
authors.initials: M
authors.lastname: Crail
mesh_terms: D002908:Chronic Disease / Q000453:epidemiology; D006306:Health Surveys; D006801:Humans; D009819:Office Visits / Q000706:statistics & numerical data; D012907:Smoking / Q000453:epidemiology; D006113:United Kingdom / Q000453:epidemiology