A Walker1. Show Affiliations » 1. Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA.
Abstract
Mesh: See more » Consensus Development Conferences as TopicHumansMeta-Analysis as TopicRandomized Controlled Trials as Topic/standards
Year: 1999 PMID: 10584713 DOI: 10.1016/S0140-6736(99)00355-4
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321