| Literature DB >> 5762818 |
A Kogon, I Spigland, T E Frothingham, L Elveback, C Williams, C E Hall, J P Fox.
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Year: 1969 PMID: 5762818 DOI: 10.1093/oxfordjournals.aje.a120915
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897