| Literature DB >> 4348244 |
D M Horstmann, J Emmons, L Gimpel, T Subrahmanyan, J T Riordan.
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Year: 1973 PMID: 4348244 DOI: 10.1093/oxfordjournals.aje.a121498
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897