| Literature DB >> 4984580 |
N Nathanson, G A Cole, G W Santos, R A Squire, K O Smith.
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Year: 1970 PMID: 4984580 DOI: 10.1093/oxfordjournals.aje.a121143
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897