R Parker. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » GeriatricsMarylandPersonal Health Services/supply & distributionProbabilitySampling Studies
Year: 1971 PMID: 5562430 DOI: 10.1097/00005650-197107000-00004
Source DB: PubMed Journal: Med Care ISSN: 0025-7079 Impact factor: 2.983