NICE guideline

Cholecystitis and Choledocholithiasis. NICE.org. October 2014: 21 [24 June 2018]. PMID 25473723. Clinical Guideline 188. （原始内容存档于2018-07-13）.  Gallstones

guideline clearinghouses）。美國的美國醫療指南交換中心（英语：National Guideline Clearinghouse）會維護一份由不同衛生及醫療組織所發佈，高品質的醫療指南(于2018年结束)。英國的臨床醫學指南主要是由英國英國國家健康照護卓越研究院（NICE）（英语：National

Institute for Health and Clinical Excellence（NICE）. NICE guidelines: Depression in children and adolescents. London: NICE. 2005: 5 [2008-08-16]. ISBN 1-84629-074-0

Taylor, C; Clark, DM; Guideline Development, Group. Recognition, assessment and treatment of social anxiety disorder: summary of NICE guidance. (PDF). BMJ

（原始内容存档于2017-09-08）.  Chey WD, Leontiadis GI, Howden CW, Moss SF. ACG Clinical Guideline: Treatment of Helicobacter pylori Infection. The American Journal of Gastroenterology