title: Potential bias in cardiovascular risk behavior study.
authors: P Z
authors: PZ
authors: Siegel
authors: A L
authors: AL
authors: Franks
mesh_terms: D015982:Bias; D002318:Cardiovascular Diseases / Q000209:etiology* / Q000523:psychology; D006801:Humans; D009765:Obesity / Q000150:complications; D012107:Research Design; D012309:Risk-Taking