| Literature DB >> 6081385 |
D A Stevens, M Schaeffer, J P Fox, C D Brandt, M Romano.
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Year: 1967 PMID: 6081385 DOI: 10.1093/oxfordjournals.aje.a120771
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897