| Literature DB >> 4933294 |
D A Clark, E B Stinson, R B Griepp, J S Schroeder, N E Shumway, D C Harrison.
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Year: 1971 PMID: 4933294 DOI: 10.7326/0003-4819-75-1-15
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391