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2. Selesnick, S., andKatz, D. A clinical appraisal of gastroscopy.Conn Med 58:31; 351, 1958.
3. Katz, D., Siegel, H., andSussman, H. Gastric biopsy in acute upper gastrointestinal hemorrhage and controls: Histological confirmation of erosive gastritis seen gastroscopically (Abst.).Gastroenterology 50: 852, June 1966.
4. Katz, D. “A New Telescope for Esophagoscopic Cinematography.” Presented at the Annual Meeting of the American Society for Gastrointestinal Endoscopy, Chicago, Ill., 1966.
5. Katz, D. “Cinematography as an Aid in the Diagnosis of Peptic Esophagitis.” Presented at the Annual Meeting of the American Society for Gastrointestinal Endoscopy, Colorado Springs, Colo., May 24, 1967.