Peter A. Ubel, MD ⁎, a, b, c, Margaret M. Zell d, David J. Miller, PhD d, Gary S. Fischer, MD d, e, Darien Peters-Stefani d, Robert M. Arnold, MD e
a Department of Medcine, Veterans Affairs Medical Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
b the Division of General Internal Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
c the Center for Bioethics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
d the Department of History and Philosophy of Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
e the Division of General Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.