1. Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Kampangsaen Campus, Nakhon Pathom, Bangkok, Thailand
2. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
3. Department of Pharmacy, Division of Pharmaceutical Technology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
4. Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand