| Literature DB >> 4969351 |
N Nathanson, I S Thind, W O'Leary, W H Price.
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Year: 1968 PMID: 4969351 DOI: 10.1093/oxfordjournals.aje.a120858
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897