| Literature DB >> 4371067 |
D J Sexton, D J Krogstad, H C Spencer, G R Healy, S Sinclair, C E Sledge, M G Schultz.
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Year: 1974 PMID: 4371067 DOI: 10.1093/oxfordjournals.aje.a112053
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897