1. Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Rajthevi, Bangkok 10400, Thailand
2. Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Rajthevi, Bangkok 10400, Thailand
3. Research Center, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Rajthevi, Bangkok 10400, Thailand