R J Goldberg, J E Dalen. Show Affiliations »
Abstract
Mesh: See more » Cross-Sectional StudiesManuscripts, Medical as TopicPeer ReviewProspective StudiesRandomized Controlled Trials as TopicRetrospective Studies
Year: 1997 PMID: 9046888
Source DB: PubMed Journal: Arch Intern Med ISSN: 0003-9926