L P Fielding, R Grace, R Hittinger. Show Affiliations »
Abstract
Mesh: See more » HumansPatient SelectionRandomized Controlled Trials as TopicSelection Bias
Year: 1995 PMID: 7787571 PMCID: PMC2549780 DOI: 10.1136/bmj.310.6991.1410
Source DB: PubMed Journal: BMJ ISSN: 0959-8138