Michael J. Selgelid is a Senior Research Fellow in the Centre for Applied Philosophy and Public Ethics (CAPPE) at the Australian National University in Canberra. He was previously the Sesquicentenary Lecturer in Bioethics at the University of Sydney and a Lecturer and Postdoctoral Research Fellow at the University of the Witwatersrand in Johannesburg, South Africa.

Margaret P. Battin is Distinguished Professor of Philosophy and Adjunct Professor of Internal Medicine, Division of Medical Ethics, at the University of Utah. The author of prize-winning short stories and recipient of the University of Utah's Distinguished Research Award, she has authored, edited, or co-edited twelve books on topics including physician-assisted suicide, euthanasia, age-rationing of health care, professional ethics, organized religion, and aesthetics.

Charles B. Smith, MD, is Professor Emeritus of Medicine at the University of Washington School of Medicine, having previously served as Professor and Associate Dean. He served as Chief Medical Officer of the Veteran's Administration Hospital in Seattle. He has held positions as Associate Chairman, Professor of Medicine, and Chief of the Division of Infectious Diseases, and is currently Professor Emeritus in the Department of Medicine at the University of Utah School of Medicine.