1. College of Pharmacy, Sookmyung Women's University, Yongsan-ku, Seoul, Republic of Korea
2. Department of Pharmacology and Dental Therapeutics, Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
3. Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea
4. Departments of Physics, Hunter College of the City University of New York, New York City, New York, USA