1. a Department of Industrial and Systems Engineering , University of Wisconsin-Madison , 1513 University Avenue, Room 387, Madison, WI, 53706, USA
2. b Systems Engineering Initiative in Patient Safety , University of Wisconsin-Madison , Madison, WI, USA
3. c Center for Health Systems Research and Analysis , University of Wisconsin-Madison , 610 Walnut Street, Room 1167, Madison, WI, 53705, USA
4. d School of Industrial and Systems Engineering , Georgia Institute of Technology , 765 Ferst Drive, Room 332A, Atlanta, GA, 30332, USA