1. Department of Family Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
2. Center for Digital Health, Medical Science Research Institute, Kyung Hee University Medical Center, Seoul, Korea
3. Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
4. Department of Computer Science and Engineering, College of Software, Kyung Hee University, Suwon, Korea