1. School of Pharmaceutical
Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
2. Natural Products Research Laboratories, UNC Eshelman
School of Pharmacy, University of North Carolina at Chapel Hill, Chapel
Hill, North Carolina 27599-7568, United States
3. NIH Special Volunteer, Wayne, Pennsylvania 19087, United States
4. Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7295, United States
5. Chinese
Medicine Research and Development Center, China Medical University and Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan