Ulcer in the Upper Intestine (Duodenal Ulcer): References

Small intestine cancer. American Cancer Society. http://www.cancer.org/acs/groups/cid/documents/webcontent/003140-pdf.pdf. April 2014. Accessed November 2015.

Duodenal ulcer. Patient.co.uk. http://www.patient.co.uk/health/Duodenal-Ulcer.htm. 2012. Accessed November 2014.

Stomach and duodenal ulcers (Peptic Ulcers). Johns Hopkins Medicine Health Library. http://www.hopkinsmedicine.org/healthlibrary/conditions/digestive_disorders/stomach_and_duodenal_ulcers_peptic_ulcers_85,P00394/. Accessed October 25, 2012.

US Dept of Health and Human Services, National Institutes of Health, National Digestive Diseases Information Clearinghouse. H. pylori and peptic ulcers. http://digestive.niddk.nih.gov/ddiseases/pubs/hpylori/. April 2010. Accessed September 2010.