title: Control selection with incomplete case ascertainment.
authors.affiliation: Department of Epidemiology, School of Public Health, University of North Carolina, Chapel Hill 27514.
authors.forename: D A
authors.initials: DA
authors.lastname: Savitz
authors.forename: N
authors.initials: N
authors.lastname: Pearce
mesh_terms: D000428:Alcohol Drinking; D004812:Epidemiologic Methods; D006801:Humans; D007248:Infertility, Male / Q000209:etiology* / Q000523:psychology; D008297:Male; D012107:Research Design