title: Sources used in health policy research and implications for information retrieval systems.
authors.affiliation: Division of Health and Science Policy, New York Academy of Medicine, NY 10029-5293, USA. bgray@nyam.org
authors.forename: B H
authors.initials: BH
authors.lastname: Gray
mesh_terms: D016206:Databases, Bibliographic; D006291:Health Policy; D006302:Health Services Research; D006801:Humans; D016247:Information Storage and Retrieval; D009317:National Library of Medicine (U.S.); D014481:United States