N Black. Show Affiliations »
Abstract
Mesh: See more » HumansOutcome Assessment, Health CareRandomized Controlled Trials as Topic
Year: 1994 PMID: 8086926 PMCID: PMC2542748 DOI: 10.1136/bmj.309.6953.540a
Source DB: PubMed Journal: BMJ ISSN: 0959-8138