Rabbi Elliot Dorff is a professor of philosophy and university rector at American Jewish University in Bel-Air, Calif. He is an expert in Jewish family issues, including adoption. He has studied the Jewish perspective on assisted death, transhumanism and ethics in general.

Joel Zimbelman, a California State University-Chico, religious studies professor, has written on legal decisions and public opinion informing the debate over the removal of life-sustaining treatment, assisted suicide and euthanasia.

Linda Ganzini, professor of psychiatry and medicine at Oregon Health Sciences University, surveyed 2,500 Oregon physicians and 500 hospice workers about patients’ experience of assisted suicide.

Darien Fenn, professor in the psychiatry department at Oregon Health Sciences University, has studied the attitude of Oregon psychologists toward physician-assisted suicide and the Oregon Death with Dignity Act. He can be emailed through a website contact form.

Courtney Campbell, Oregon State University philosophy professor, has focused on the Latter-day Saints and medical ethics, as well as hospice and assisted suicide. He has authored numerous articles on the controversial Oregon Death with Dignity Act and on the Oregon Health Plan.

Gerald McKenny is a professor of Christian ethics and moral theology at the University of Notre Dame. He studies and writes about the ethics of biotechnology and the philosophy of medicine.

Kathryn Rettig is a professor of family social science at the University of Minnesota who has looked at marriage issues, child support systems and the values underlying end-of-life decisions.

Stella Capek, Hendrix College sociology professor, has studied the right-to-die movement in the United States.

Dixon Sutherland is the Stetson University professor of religion and ethics and has also served as director of the Christian Ethics Institute.