Participation in Advanced Course in Advanced Laparoscopic Surgery European Institute of Telesurgery, Strasbourge, 2015. Participation in Advanced Course in Laparoscopic Common Bile Duct Exploration Karolinska Hospital، 2008, Stockholm, Sweeden. Participation in Advanced Course in Laparoscopic Parastomal Hernia Repair Mittelbaden Clinic، Germany،2008. Educational & Workshop Certification Appear and Smart Techniques,Queen Mary Hospital, The University of Hong Kong,2011. Endoscopy and Rectosigmoidoscopy License Dr. Nazari received this license from Iranian Association of Gastroenterology and Hepatology in 2009. Advanced Laparoscopic Surgery Dr. Nazari has completed this course on 2005 at the S+A Klink Fur MIC in Germany. Gastric Banding Procedure Dr. Nazari has completed this course on 2004 at the AKH Hospital in Austria. Permanent Medical License Dr. Nazari received permanent medical license with number 30814.