P G Smith. Show Affiliations »
Abstract
Mesh: See more » Clinical Trials as Topic/methodsDeveloping CountriesEpidemiologic MethodsEthics, MedicalHumansPreventive Medicine/methodsResearch DesignTropical Medicine
Year: 1987 PMID: 3301705 DOI: 10.1093/ije/16.2.159
Source DB: PubMed Journal: Int J Epidemiol ISSN: 0300-5771 Impact factor: 7.196