1. Department of Health Care Administration, Chung Hwa University of Medical Technology, Tainan Hsien, Taiwan, ROC
2. Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
3. Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
4. Faculty of Pharmacy, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC