1. Department of Fragrance and Cosmetics, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
2. Health Bureau of Kaohsiung County Government, Kaohsiung, Taiwan
3. Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
4. Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
5. School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan