title: Response to Zhao et al.
authors: Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea.
authors: Seung-Woo
authors: SW
authors: Lee
authors: Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea.
authors: Jae
authors: J
authors: Hyuck Chang
authors: Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Republic of Korea.
authors: Jeong-Seon
authors: JS
authors: Ji