title: 50 and up.
authors.affiliation: magraf@hci-link.com
authors.forename: M A
authors.initials: MA
authors.lastname: Graf
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015331:Cohort Studies; D003256:Community Participation; D003657:Decision Making; D005260:Female; D006801:Humans; D008389:Marketing of Health Services; D008875:Middle Aged; D011157:Population Dynamics; D012179:Retirement; D014932:Women's Health Services / Q000706:statistics & numerical data*