1. Department of Internal MedicineSeoul National University College of Medicine Seoul Republic of Korea
2. Department of Operations, Information and Decisions, Wharton SchoolUniversity of Pennsylvania Philadelphia PA USA
3. Department of Management Information Systems, Eller College of ManagementUniversity of Arizona Tucson AZ USA
4. Department of Internal MedicineChonnam National University Hwasun Hospital Chonnam
5. Department of Preventive MedicineAjou University School of Medicine Suwon Republic of Korea