Department of Internal Medicine;
Hallym University College of Medicine;
Chuncheon Sacred Heart Hospital;
Gangwon-do 200-704;
South Korea;
Department of Internal Medicine;
Soonchunhyang University College of Medicine;
Soonchunhyang University Hospital;
Seoul 140-743;
South Korea;
Department of Anatomy and Cell Biology;
Hanyang University College of Medicine;
222 Wangsimni-ro;
Seongdong-gu;
Seoul 133-792;
South Korea;