title: Sample-size formula for case-cohort studies.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kubota
authors.forename: Akira
authors.initials: A
authors.lastname: Wakana
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D015340:Epidemiologic Research Design; D006801:Humans; D008875:Middle Aged; D018401:Sample Size