2013-04-30
加拿大胃肠病学协会(CAG,The Canadian Association of Gastroenterology)
2013-02-01
欧洲胃肠道内窥镜学会(ESGE,European Society of Gastrointestinal Endoscopy)
2012-10-01
2012-07-02
美国结直肠癌多学会工作组(USMSTF,US Multi-Society Task Force on Colorectal Cancer)
2011-03-23
英国国家卫生与临床优化研究所(NICE,National Institute for Health and Clinical Excellence)