Domestic:
1973 - 1979: Student - Hanoi Medical University
1987 - 1989: Specialist level I. Official Course. Hanoi Medical University
1995 - 1997: Specialist level II Official Course. Hanoi Medical University
Foreign:
1993: 6 months at Mahidol University - Bangkok - Thailand. Dengue fever/ WHO sponsors
1994 - 1995: Two years at the Academic medical center of Amsterdam - Netherlands (AMC - Netherlands). Infectious – Tropical Diseases and HIV/AIDS. The Dutch Government sponsors 1996: 03 Weeks at Nagasaki University - Japan. Hepatitis Virus and Malaria. WHO sponsors
2003: 09 months at Harvard Medical University - USA. Infectious Diseases and HIV/AIDS. CDC funded
Attending many scientific conferences organized by WHO, Unicef, CDC... Thailand: (6 times), Indonesia (2 times), Malaysia (once), China (3 times), Australia (2 times)