| Literature DB >> 4347509 |
R Golubjatnikov, V D Allen, M Steadman, S L Inhorn.
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Year: 1973 PMID: 4347509 DOI: 10.1093/oxfordjournals.aje.a121488
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897