| Literature DB >> 8340797 |
L M Schuman1, A H Coulson, J S Mandel, F J Massey, W M O'Fallon.
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Year: 1993 PMID: 8340797 DOI: 10.1016/0895-4356(93)90180-9
Source DB: PubMed Journal: J Clin Epidemiol ISSN: 0895-4356 Impact factor: 6.437