1. Department of Internal Medicine, Wonkwang University School of Medicine, Iksan, Korea.
2. College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea.
3. Department of Orthopaedic Surgery, Hallym University School of Medicine, Anyang, Korea.
4. Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
5. Department of Internal Medicine, Wonkwang University Sanbon Hospital, Gunpo, Korea.