J A Grisso1. Show Affiliations » 1. Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia 19104.
Abstract
Mesh: See more » Case-Control StudiesClinical Trials as TopicCohort StudiesCross-Sectional StudiesHumansMedical RecordsResearch DesignStatistics as Topic
Year: 1993 PMID: 8101260 DOI: 10.1016/0140-6736(93)91351-l
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321