title: A survey of cannabis use in offshore rig workers.
authors.forename: I M
authors.initials: IM
authors.lastname: Calder
authors.forename: J
authors.initials: J
authors.lastname: Ramsey
mesh_terms: D000062:Accidents, Occupational / Q000517:prevention & control*; D000328:Adult; D002188:Cannabis; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D006113:United Kingdom