Use of upper endoscopy to evaluate patients with a positive faecal occult blood test and negative colonoscopy: Is it appropriate?

Use of upper endoscopy to evaluate patients with a positive faecal occult blood test and negative colonoscopy: Is it appropriate?

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Digestive and Liver Disease - Volume 38, Issue 7, July 2006, Pages 507-510

E.J. Bini,