Institution: | 1. PATH, 2201 Westlake Avenue, Seattle, WA 98121, USA;2. PATH, Unit 01-02, Floor 2nd, Hanoi Towers, 49 Hai Ba Trung, Hoan Kiem District, Hanoi, Viet Nam;3. National Expanded Programme for Immunization, National Institute of Hygiene and Epidemiology, No. 1 Yec-xanh Street, Hai Ba Trung District, Hanoi, Viet Nam |