1. Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.
2. Department of Internal Medicine, Pusan National University College of Medicine, Busan, Korea.
3. Liver Center, Pusan National University Yangsan Hospital, Yangsan, Korea.
4. Department of Pharmacology, Inje University College of Medicine, Busan, Korea.
5. Clinical Trial Center, Inje University Busan Paik Hosptial, Busan, Korea.