1. Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), Ubon Ratchathani University, Ubon Ratchathani, Thailand
2. Faculty of Medicine, Mahasarakham University, Mahasarakham, Thailand
3. College of Medicine and Public Health, Ubon Ratchathani University, Ubon Ratchathani, Thailand
4. Academic Office for Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand