From 1982 to 1985 Doctor of Bach Mai Hospital - Viet Duc of Department of Electro-Optics - Hanoi Medical University From 1985 to 1990, a member of the Department of Electro-optics of the Hanoi University of Technology, Doctor of Dermatology - Viet Duc Hospital From 11/1991 - 11/1993 - Lecturer, Faculty of ophthalmology, Hanoi University of Dermatology From 1994-6 / 1998- Lecturer in Department of Photovoltaics, Hanoi University of Technology, Bach Mai Dc. From 3 / 1999-10 / 2003 - Deputy Dean of Visual Imaging Department - Bach Mai Hospital, Deputy Head of Department of Imaging - Hanoi University of Medicine From November 2003 to September 2009 - Dean of Bach Mai Medical Faculty - Deputy Head of Department of Electro-optics, Hanoi University of Technology From September 2009 to July 2013, Vice Director of Bach Mai Hospital, Head of the Department of Diagnostic Imaging - Bach Mai Hospital, Deputy Head of Department of Radiology, Head of Department of Radiology, Head of Department of Radiology, BM,Vice President and Secretary General Photonics and YHHN VN From 8/2013 to 5 / 2014- Deputy Director of Bach Mai Hospital, Dean of Visual Imaging Department - Bach Mai Hospital, Deputy Head of Department of College of Public Health, Head of Department of Radiology, BM. Male. From 5/2014 to now Deputy Director of Bach Mai Hospital, Dean of Visual Imaging Department - Bach Mai Hospital, Vice Dean of Faculty of Medicine, Hanoi University of Science, Head of Research & Technology Department - BM Hospital, Creating and directing the route - Bach Mai Hospital, Chairman of Vietnam Association of Radiology and Medicine.  

 Medicine,Radiology,MRI, etc