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Editions

U.S. Department of Health and Human Services, Public Health Service, National Center for Health Services Research and Health Care Technology Assessment, Available from National Technical Information Service
1989

U.S. Dept. of Health and Human Services, Public Health Service, The Center
1988

U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Services Research and Health Care Technology Assessment, Available from National Technical Information Service
1989