Functional and histopathological changes of the gastric mucosa in relation to age

Angiodysplasia of the gastrointestinal tract

Diabetes mellitus and the gastrointestinal tract

Chromoendoscopy of the gasterointestinal tract

Acute upper gastrointestinal bleeding

Intestinal transplantation

Endoscopic evaluation of side effects of low dose aspirin on upper gastrointestinal tract

Endoscopic evaluation of side effects of low dose aspirin on upper gastrointestinal tract

Study of the lower gastrointestinal endoscopic findings in cirrhotic patients with portal hypertension

Diagnostic and therapeutic role of endosonography in gastrointestinal diseases