| Literature DB >> 4204032 |
J W Sigler, G B Bluhm, H Duncan, J T Sharp, D C Ensign, W R McCrum.
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Year: 1974 PMID: 4204032 DOI: 10.7326/0003-4819-80-1-21
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391