1. Department of Radiology, Da Nang Oncology Hospital, Da Nang, Vietnam
2. School of Medicine and Pharmacy, The University of Danang, Da Nang, Vietnam
3. Department of Radiology, Thien Hanh Hospital, Buon Ma Thuot, Vietnam
4. Department of Radiology, Tu Du Hospital, Ho Chi Minh, Vietnam
5. Division of Endocrinology, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, USA