G Rose, D J Barker. Show Affiliations »
Abstract
Mesh: See more » EpidemiologyHumansMethodsPopulationRiskSampling StudiesTime Factors
Year: 1978 PMID: 698742 PMCID: PMC1607842 DOI: 10.1136/bmj.2.6140.803
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447