| Literature DB >> 4999240 |
G G Heiner, N Fatima, R W Daniel, J L Cole, R L Anthony, F R McCrumb.
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Year: 1971 PMID: 4999240 DOI: 10.1093/oxfordjournals.aje.a121319
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897