2006
Flexible Surgical Endoscopy (Clinical Fellow), Cleveland Clinic, Ohio, USA
Bariatric Surgery, American Society for Bariatric Surgery, United States
2004
Clinical Fellow in Minimally Invasive Surgery, Shanghai Minimally Invasive Center, Shanghai 2nd Medical University, Shanghai, China, 2004
2003
Family medicine, Thailand
Clinical Fellow in Upper Gastrointestinal Surgery, Japanese Council for Medical Training ,Tokyo,Japan
2000
General surgery , Faculty of Medicine, Khon Kaen University, Thailand