| Literature DB >> 5562718 |
J F Finklea, V Hasselblad, S H Sandifer, D I Hammer, G R Lowrimore.
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Year: 1971 PMID: 5562718 DOI: 10.1093/oxfordjournals.aje.a121279
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897