title: Can we really derive etiology from human-based studies?
authors: Department of Social and Preventive Medicine, State University of New York, Buffalo 14214.
authors: J R
authors: JR
authors: Marshall
mesh_terms: D000818:Animals; D004032:Diet / Q000009:adverse effects*; D006805:Human Experimentation; D006801:Humans; D009369:Neoplasms / Q000209:etiology*; D010349:Patient Compliance; D012107:Research Design