| Literature DB >> 5063894 |
A F Kaufmann, M D Fox, G K Morris, B T Wood, J C Feeley, M K Frix.
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Year: 1972 PMID: 5063894 DOI: 10.1093/oxfordjournals.aje.a121420
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897