| Literature DB >> 4411988 |
M H Merson, D A Goldmann, K M Boyer, N J Peterson, C Patton, L G Everett, H Downs, A Steckler, W H Barker.
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Year: 1974 PMID: 4411988 DOI: 10.1093/oxfordjournals.aje.a112027
Source DB: PubMed Journal: Am J Epidemiol ISSN: 0002-9262 Impact factor: 4.897