| Literature DB >> 5562097 |
P M Ellwood, N N Anderson, J E Billings, R J Carlson, E J Hoagberg, W McClure.
Abstract
Mesh:
Year: 1971 PMID: 5562097 DOI: 10.1097/00005650-197105000-00008
Source DB: PubMed Journal: Med Care ISSN: 0025-7079 Impact factor: 2.983