1. Results of questionnaire on fatalities in gastroscopy;Schindler;Am. J. Digest. Dis.,1940
2. Perforation of jejunum during gastroscopic examination of resected stomach;Rumball;J. A. M. A.,1939
3. The risks of gastroscopy: a survey of 49,000 examinations;Jones;Lancet,1951
4. Gastroscopy and delayed rupture of the spleen; a review and report of a possible case;Hunter;Gastroenterology,1955
5. Passage of air through gastric wall during gastroscopy with no wound demonstrable three hours later;Schindler;Gastroenterology,1945