Clinical Practice Guidelines

AGA

(American Gastroenterology Association)

ACG

(American College of Gastroenterology)

AASLD

(American Association for the Study of Liver Diseases)

ASGE

(American Society of Gastrointestinal Endoscopy)

U.S. Preventive Services Task Force

ASPEN

(American Society for Parenteral and Enteral Nutrition)

UEG

(United European Gastroenterology)

EASL

(The European Association for the Study of the Liver)

ECCO

(European Crohn's and Colitis Organization)

BSG

(Britich Society of Gastroenterology)

ESGE

(Eurpean Society of Gastrointestinal Endoscopy)

ESPEN

(The European Sciety for Clinical Nutrition and Metabolism)

WGO

(World Gastroenterology Organization)

JGES

(Japan Gastrointestinal Endoscopy Society)