SOCIEDADE PORTUGUESA DE GASTRENTEROLOGIA
www.spg.pt

SOCIEDADE PORTUGUESA DE ENDOSCOPIA DIGESTIVA
www.sped.pt

AMERICAN GASTROENTEROLOGICAL ASSOCIATION
www.gastro.org

AMERICAN COLLEGE OF GASTROENTEROLOGY
http://www.acg.gi.org/

BLOG IGH
http://igh-institutomedico.blogspot.com/