[Rockville, MD?] : National Center for Health Services Research and Health Care Technology Assessment, U.S. Dept. of Health and Human Services, Public Health Service, [1988]
Physical Details
pages 315-327 ; 28 cm
OCLC
ocm25998095
At head of title: NCHSR.
Reprinted from Inquiry 25: 315-327, Fall 1988; copyright 1988 Blue Cross and Blue Shield Association.