| Literature DB >> 4287642 |
J R Mitchell, M W Presnell, E W Akin, J M Cummins, O C Liu.
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Year: 1966 PMID: 4287642 DOI: 10.1093/oxfordjournals.aje.a120626
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897