Guy Lloyd. Show Affiliations »
Abstract
Mesh: See more » Biomedical Research/methodsEpidemiologic MethodsObservation
Year: 2007 PMID: 17974657 PMCID: PMC2048875 DOI: 10.1136/bmj.39381.434919.BE
Source DB: PubMed Journal: BMJ ISSN: 0959-8138