title: Physician marketing of nutritional supplements.
authors.forename: K M
authors.initials: KM
authors.lastname: Davis
authors.forename: D
authors.initials: D
authors.lastname: Clark
authors.forename: K E
authors.initials: KE
authors.lastname: Koch
mesh_terms: D019587:Dietary Supplements; D004345:Drug Industry; D035082:Federal Government; D033161:Government Regulation; D006801:Humans; D010818:Practice Patterns, Physicians'