. Show Affiliations »
Abstract
Mesh: See more » Cluster AnalysisRandomized Controlled Trials as Topic
Year: 2001 PMID: 11393867 DOI: 10.1002/1097-0258(20010215)20:3<329::AID-SIM794>3.0.CO;2-0
Source DB: PubMed Journal: Stat Med ISSN: 0277-6715 Impact factor: 2.373