Cannabis and psychosis.
Macleod
John
J
Davey Smith
George
G
Hickman
Matthew
M
Egger
Matthias
M
D000293:Adolescent; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D008385:Marijuana Smoking / Q000009:adverse effects*; D011605:Psychoses, Substance-Induced / Q000209:etiology*