E Hirshfeld1. Show Affiliations » 1. American Medical Association, Chicago, USA.
Abstract
Mesh: See more » Employee Retirement Income Security Act/legislation & jurisprudenceHumansInsurance Carriers/legislation & jurisprudencePhysiciansPreferred Provider Organizations/economicsUnited States
Year: 1996 PMID: 8854505 DOI: 10.1377/hlthaff.15.3.28
Source DB: PubMed Journal: Health Aff (Millwood) ISSN: 0278-2715 Impact factor: 6.301