| Literature DB >> 3772288 |
D Mant, M P Vessey, M A Smith, D Yeates.
Abstract
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Year: 1986 PMID: 3772288 PMCID: PMC1052539 DOI: 10.1136/jech.40.3.277
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710