1. Heart Research Center of Chonnam National University Hospital, Gwangju 61469, Republic of Korea
2. Hypertension Heart Failure Research Center, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
3. Department of Laboratory Medicine, Chonnam National University, Medical School and Hospital, Gwangju 61469, Republic of Korea
4. Department of Cardiology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea