○Dang An Binh1, Bui Dieu Hang1, Tran Vu Quynh Vy1, Ngo Thuy Trang2, Mai Trong Khoa2, Trinh Thi Minh Chau3, Nguyen Xuan Canh4, Nguyen Thi Thu5
(1.Department of Nuclear Medicine, Cho Ray Hospital, Ho Chi Minh city, Viet Nam, 2.Nuclear Medicine and Oncology Center, Bach Mai Hospital, Ha Noi, Viet Nam, 3.Department of Nuclear Medicine, University Medical Center, Ho Chi Minh city, Viet Nam, 4.PET/CT & Cyclotron Unit, Cho Ray Hospital, Ho Chi Minh city, Viet Nam, 5.Nguyen Thi Thu, Center for Reseach and Production of Radioisotopes, Nuclear Research Institute, Da Lat, Viet Nam)