Descripción
Notas:Proceedings of a workshop held on May 3-4, 1989, supported by the Howard Hughes Medical Institute and the National Center for Health Services Research of the Department of Health and Human Services (grant 5 RO9 HS055 26 02).
Descripción Física:1 online resource (xviii, 222 pages) : illustrations.
Bibliografía:Includes bibliographical references.
ISBN:0585125244
9780585125244
9780309543569
0309543568