ผู้เขียน: Ruth B. Purtilo

Ruth B. Purtilo, Ph.D., is James Marsh Presidential Professor-at-Large at the University of Vermont and a professor emerita of the MGH Institute of Health Professions. Henk A.M.J. ten Have, M.D., Ph.D., is a professor of medical ethics at the University Medical Centre Nijmegen, the Netherlands, and director of the Division of Ethics of Science and Technology, UNESCO, Paris.