1. Operations and Decision Technologies, Kelley School of Business; Indiana University; 1309 E. Tenth Street Bloomington Indiana 47405 USA
2. Department of Mechanical Engineering; University of Texas; San Antonio One UTSA Circle San Antonio Texas 78249 USA
3. Department of Urology; University of Michigan; VA; Health Services Research & Development (HSR&D) Center for Clinical Management Research; VA; Ann Arbor Healthcare System; 3875 Taubman Center, 1500 East Medical Center Drive Ann Arbor Michigan 48109 USA