| Literature DB >> 5458218 |
G J Kaplan, P S Clark, T R Bender, E T Feltz, B List-Young, S E Nevius, T D Chin.
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Year: 1970 PMID: 5458218 DOI: 10.1093/oxfordjournals.aje.a121205
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897