title: The case-control study and its potential biases.
authors.forename: H
authors.initials: H
authors.lastname: Yazici
authors.forename: S
authors.initials: S
authors.lastname: van der Linden
mesh_terms: D001168:Arthritis / Q000453:epidemiology* / Q000209:etiology; D015982:Bias; D016022:Case-Control Studies; D004812:Epidemiologic Methods; D006801:Humans; D015995:Prevalence; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000150:complications* / Q000453:epidemiology