He received an M.D. degree from the Faculty of Medicine, Khon Kaen University, Thailand. He also has an M.S.A. degree in clinical research from the University of California, San Diego, Calif, USA, in 2007, and a Ph.D. degree in environmental epidemiology from the University of Occupational and Environmental Health, Kitakyushu City, Japan. He has been working on clinical aspects and serodiagnosis of eosinophilic meningitis caused by Angiostrongylus cantonensis. He also works on clinical epidemiological studies on various aspects of internal medicine.