Robert M. Walker, MD, Associate Professor in the Department of Internal Medicine in the Division of Medical Ethics and Humanities at the University of South Florida College of Medicine, wrote in a Jan./Feb. 2001 Cancer Control article titled "Physician-Assisted Suicide: The Legal Slippery Slope":

“The current legal system allows the possibility of a legal slippery slope in moving from PAS [physician-assisted suicide] to voluntary euthanasia to nonvoluntary euthanasia… the potential for extending PAS to incapacitated patients remains. At a minimum, this scenario of case law extension of PAS to incapacitated patients should at least give pause to true advocates of patient choice. It should prompt them to reconsider the wisdom of continued efforts to legalize PAS, since doing so expands the potential for future legal decisions that will end life based not on patient choice but on the choice of others.”

Jan./Feb. 2001