title: Targeting disabled and at risk older adults for inclusion in population based studies.
authors.affiliation: Center for Aging and Health, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Williamson
authors.forename: L P
authors.initials: LP
authors.lastname: Fried
mesh_terms: D000375:Aging / Q000502:physiology*; D004185:Disability Evaluation; D006233:Persons with Disabilities / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D012307:Risk Factors