B. Gelberg

Crohn's disease in endoscopic biopsies of the gastric antrum and duodenum.

J. Waye, B. Korelitz, S. Sommers, 1981, The American journal of gastroenterology.

Gastric mucosal disruption (fissuring) as a sign of impending perforation in a patient with gastric volvulus.

M. L. Levine, B. Gelberg, 1993, Gastrointestinal endoscopy.