1. Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
2. Center for Vaccine Development, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom 73170, Thailand
3. Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
4. Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
5. School of Pharmacy, Walailak University, Nakhon Si Thammarat 80160, Thailand