P Cox. Show Affiliations »
Abstract
Mesh: See more » Data Collection/methodsDeveloping CountriesEpidemiologic MethodsHumansPopulationResearch
Year: 1984 PMID: 6428559 PMCID: PMC1441824 DOI: 10.1136/bmj.288.6433.1814
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623