Peter M Rothwell, Meena Bhatia. Show Affiliations »
Abstract
Mesh: See more » Biomedical ResearchCausalityEpidemiologic MethodsObservation
Year: 2007 PMID: 17947746 PMCID: PMC2034700 DOI: 10.1136/bmj.39351.581366.BE
Source DB: PubMed Journal: BMJ ISSN: 0959-8138