| Literature DB >> 4181615 |
J E McGuigan, M L Purkerson, W L Trudeau, M L Peterson.
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Year: 1968 PMID: 4181615 DOI: 10.7326/0003-4819-68-2-398
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391