1. Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Korea.
2. Department of Biology Education, Daegu University, Gyeongsan, Korea.
3. Departments of Biological Sciences, College of Bioscience and Biotechnology, Chungnam National University, Daejeon, Korea.
4. Department of Anatomy & Cell Biology, Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, Korea.
5. College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Gwanak-gu, Korea.