| Literature DB >> 21640555 |
Sandra E Zwolsman, Margreet Wieringa-de Waard, Lotty Hooft, Nynke van Dijk.
Abstract
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Year: 2011 PMID: 21640555 DOI: 10.1016/j.jclinepi.2011.02.005
Source DB: PubMed Journal: J Clin Epidemiol ISSN: 0895-4356 Impact factor: 6.437