Affiliation: | 1. Department of Surgery, The Johns Hopkins Hospital, 600 N Wolfe Street, Tower 110, Baltimore, MD 21287, USA;2. Department of Economics and Experimental Economics Center, Georgia State University, 14 Marietta Street NW, Atlanta, GA 30303, USA;3. School of Social Sciences, Humanities and Arts, University of California – Merced, 5200 N Lake Road, Merced, CA 95343, USA;4. Department of Surgery, Emory University School of Medicine, 201 Dowman Drive, Atlanta, GA 30322, USA |