Descripción
Notas:Bibliographic Level Mode of Issuance: Monograph
Descripción Física:1 online resource (7 pages, 1 unnumbered page)
Formato:Mode of access: Internet from the AHRQ web site. Address as of 8/10/04: http://www.ahrq.gov/clinic/epcsums/msdissum.pdf; current access available via PURL.