R J Lilford, N Johnson. Show Affiliations »
Abstract
Mesh: See more » Randomized Controlled Trials as Topic/methodsResearch DesignStatistics as Topic
Year: 1990 PMID: 2308613 DOI: 10.1056/NEJM199003153221119
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245