1. Department of Integrated Drug Development and Natural Products, Graduate School, Kyung Hee University, Seoul, Republic of Korea
2. Department of Oriental Pharmaceutical Sciences, College of Pharmacy and Kyung Hee East-West Pharmaceutical Research Institute, Kyung Hee University, Seoul, Republic of Korea
3. Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
4. Organic metrology Group, Division of Chemical and Material Metrology, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea