• AACR　(American Association for Cancer Research)
• ACG　(American College of Gastroenterology)
• APDW　(Asian Pacific Digestive Disease Week)
• APFCP　(Asia-Pacific Federation of Coloproctology)
• ASCO　(American Society of Clinical Oncology)
• ASCRS　(American Society of Colon and Rectal Surgeons)
• DDW　(Digestive Disease Week)
• ECCO　(European Crohn’ s and Colitis Organisation)
• ESCP　(European Society of Coloproctology)
• ISUCRS　(International Society of University Colon and Rectal Surgeons)
• UEGW 　(United European Gastroenterology Week)
• WCOG　(World Congress of Gastroenterology)