R I Horwitz, A R Feinstein. Show Affiliations »
Abstract
Mesh: See more » HumansResearch Design/standardsRetrospective Studies
Year: 1979 PMID: 433963 DOI: 10.1016/0002-9343(79)91164-1
Source DB: PubMed Journal: Am J Med ISSN: 0002-9343 Impact factor: 4.965