title: Epidemiologic studies: pitfalls in interpretation.
authors.forename: C L
authors.initials: CL
authors.lastname: Westhoff
mesh_terms: D000554:Ambulatory Care Facilities; D015982:Bias; D001695:Biology; D016022:Case-Control Studies; D015331:Cohort Studies; D003376:Counseling; D004812:Epidemiologic Methods; D004813:Epidemiology; D005069:Evaluation Studies as Topic; D006262:Health; D006285:Health Planning; D011634:Public Health; D012107:Research Design; D012307:Risk Factors
keywords: Bias; Biology; Case Control Studies; Clinic Activities; Cohort Analysis; Counseling; Critique; Epidemiologic Methods; Epidemiology; Error Sources; Health; Measurement; Obstacles; Program Activities; Programs; Public Health; Risk Factors; Studies; Study Design