1. Department of Industrial and Management Engineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea;
2. School of Management Engineering and School of Business Administration, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea;
3. Department of Health Policy and Management, Inje University, Gimhae, Gyeong-nam, Republic of Korea;
4. Big Data Steering Department, National Health Insurance Service, Seoul, Republic of Korea;