D J Ballard1. Show Affiliations » 1. Center for Clinical Evaluation Sciences, Emory University, USA.
Abstract
Mesh: See more » CanadaHealth Services Research/historyHistory, 20th CenturyUnited States
Year: 1997 PMID: 9108799 PMCID: PMC1070164
Source DB: PubMed Journal: Health Serv Res ISSN: 0017-9124 Impact factor: 3.402