E Nexø1, H H Brydensholt. Show Affiliations » 1. Danish Medical Research Council.
Abstract
Mesh: See more » Clinical Protocols/standardsData Collection/standardsDocumentation/standardsEpidemiologic MethodsHumansResearch Design/standards
Year: 1997 PMID: 9062770
Source DB: PubMed Journal: Dan Med Bull ISSN: 0907-8916