1. Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul 03080, Korea.
2. Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul 03080, Korea.
3. Department of Endodontics, Seoul National University School of Dentistry, Seoul 03080, Korea.
4. Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul 03080, Korea.
5. Division of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul 03080, Korea.