1. Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 03722, Korea
2. Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
3. Department of Internal Medicine and AIDS Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, South Korea
4. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, South Korea
5. Department of Orthopaedic Surgery, Severance Hospital Yonsei University College of Medicine, Seoul 03722, South Korea
6. Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, South Korea