A M Porter. Show Affiliations »
Abstract
Mesh: See more » Clinical Trials as TopicFamily PracticeHumansPhilosophy, MedicalResearchResearch Support as Topic
Year: 1971 PMID: 4926792 PMCID: PMC1795239 DOI: 10.1136/bmj.1.5749.600
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447