1. Department of Physiology, Sungkyunkwan University School of Medicine, Suwon 16419, Korea
2. Epithelial Signaling and Transport Section, Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 20892
3. Department of Physiology, College of Medicine, Seoul National University, Seoul 03080, Korea
4. Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Korea
5. Samsung Biomedical Research Institute, Samsung Medical Center, Seoul 06351, Korea