| Literature DB >> 4197420 |
L F Devine, R B Pollard, P E Krumpe, E S Hoy, R E Mammen, C H Miller, R O Peckinpaugh.
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Year: 1973 PMID: 4197420 DOI: 10.1093/oxfordjournals.aje.a121520
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897