| Literature DB >> 3102861 |
J P Newhouse, W G Manning, N Duan, C N Morris, E B Keeler, A Leibowitz, M S Marquis, W H Rogers, A R Davies, K N Lohr.
Abstract
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Year: 1987 PMID: 3102861 DOI: 10.1097/00005650-198702000-00009
Source DB: PubMed Journal: Med Care ISSN: 0025-7079 Impact factor: 2.983