title: Response to Feinstein.
authors.affiliation: Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, NC.
authors.forename: D A
authors.initials: DA
authors.lastname: Savitz
authors.forename: J L
authors.initials: JL
authors.lastname: Kelsey
mesh_terms: D015982:Bias; D004812:Epidemiologic Methods; D006801:Humans; D012107:Research Design / Q000592:standards