| Literature DB >> 14240512 |
Abstract
Keywords: GROUP PRACTICE; INSURANCE, HEALTH; RESEARCH; UNITED STATES
Mesh:
Year: 1964 PMID: 14240512 PMCID: PMC1255121 DOI: 10.2105/ajph.54.12.2040
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572