1 Department of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul 06263, Republic of Korea.
2 Division of Endocrinology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul 06263, Republic of Korea.
3 Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul 06263, Republic of Korea.
4 Department of Statistics and Actuarial Science, Soongsil University, Seoul 06978, Republic of Korea.
5 Department of Medical Statistics, The Catholic University of Korea, Seoul 06591, Republic of Korea.
6 Supportive Care Center/Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea.
7 Department of Clinical Research Design & Evaluation, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul 06351, Republic of Korea.