| Literature DB >> 5410397 |
F McDowell, J E Lee, T Swift, R D Sweet, J S Ogsbury, J T Kessler.
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Year: 1970 PMID: 5410397 DOI: 10.7326/0003-4819-72-1-29
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391