title: Managing the quality and conduct of epidemiologic studies.
authors.affiliation: Monsanto Company, St. Louis, MO 63167.
authors.forename: J J
authors.initials: JJ
authors.lastname: Collins
authors.forename: C R
authors.initials: CR
authors.lastname: Buncher
authors.forename: W
authors.initials: W
authors.lastname: Halperin
mesh_terms: D003625:Data Collection / Q000592:standards; D004812:Epidemiologic Methods; D004813:Epidemiology; D011786:Quality Control; D012107:Research Design / Q000592:standards