| Literature DB >> 5952710 |
C E McCall, R N Collins, D B Jones, A F Kaufmann, P S Brachman.
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Year: 1966 PMID: 5952710 DOI: 10.1093/oxfordjournals.aje.a120625
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897