| Literature DB >> 5458941 |
J M Leedom, J Wilkins, B Portnoy, M A Salvatore.
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Year: 1970 PMID: 5458941 DOI: 10.1093/oxfordjournals.aje.a121191
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897