1. Department of Cosmetic Science and Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan, Republic of China, Department of Parasitology, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan, Republic of China, and Department of Urology, Kuo General Hospital, Tainan 700, Taiwan, Republic of China