1. Department of Radiology, Chakri Naruebodindra Medical Institute, Mahidol University, Samut Prakan, Thailand
2. Department of Radiology, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
3. Department of Internal Medicine, Chakri Naruebodindra Medical Institute, Mahidol University, Samut Prakan, Thailand
4. Department of Radiology, Songklanagarind Hospital, Prince of Songkla University, Hat Yai, Thailand