Enhancing hospital event-based surveillance system – Findings from a pilot study, Vietnam, 2017-2018 oleh Satoko Otsu, Hien Do, Tuan Anh Ha, Tu H. Ngo, Quang D. Tran, Orla Condell, Tuan V. Le, Nghia D. Ngu, Thanh V. Hoang, Tan Q. Dang, Phu D. Tran, Phuong T. N. Tran, Anh T. Lai, Masaya Kato, Cindy Chiu