1. Department of Operations and Decision Technologies, Kelley School of Business, Indiana University, Bloomington, U.S.A;
2. Department of Industrial & Systems Engineering, University of Florida, Gainesville, U.S.A;
3. Weldon School of Biomedical Engineering, Purdue University, West Lafayette, U.S.A;
4. Department of Industrial Engineering, University of Louisville, Louisville, U.S.A;
5. Department of Industrial & Systems Engineering, Texas A&M University, College Station, U.S.A