1989 - 1995: Hanoi Medical University, Medical Doctor (General Practitioner).
1996 - 1999: Hanoi Medical University, Resident Physician specializing in Infectious Diseases.
2009 - 2015: Research at the National Institute of Hygiene and Epidemiology.
Infectious and tropical diseases, especially in the field of hepatitis B and C, bacterial infections, parasitic diseases, and fungi.