P Hewitt, K Dickersin, T C Chalmers. Show Affiliations »
Abstract
Mesh: See more » Clinical Trials as TopicMEDLARSNational Library of Medicine (U.S.)United States
Year: 1988 PMID: 3281796 DOI: 10.1016/0197-2456(88)90012-8
Source DB: PubMed Journal: Control Clin Trials ISSN: 0197-2456