European Helicobacter Study Group
www.helicobacter.org
Helicobacter and Ulcers from the Centers for Disease Control in Atlanta, USA
http://www.cdc.gov/ulcer/keytocure.htm
Helicobater Spain. Com - Retos para el siglo XXI
http://www.helicobacterspain.com
HSI - Healthy Stomach Initiative
hsinitiative.org
RF – Rome Foundation
http://www.romecriteria.org
Wikipedia about Helicobacter and ulcers
http://en.wikipedia.org/wiki/Helicobacter_pylori
National Digestive Diseases Information Clearinghouse (NDDIC)
http://www.digestive.niddk.nih.gov/ddiseases/pubs/hpylori/index.aspx