| Literature DB >> 727207 |
J M Harrington, J P Middaugh, D L Morse, J Housworth.
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Year: 1978 PMID: 727207 DOI: 10.1093/oxfordjournals.aje.a112635
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897