title: Recontacting study participants in epidemiologic research.
authors: Program in Epidemiology, Fred Hutchinson Cancer Research Center, Seattle, WA.
authors: R K
authors: RK
authors: Severson
authors: L
authors: L
authors: Heuser
authors: S
authors: S
authors: Davis
mesh_terms: D000328:Adult; D000368:Aged; D001290:Attitude; D003625:Data Collection; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007938:Leukemia / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D012907:Smoking / Q000009:adverse effects*