1. Electrocardiography during upper gastrointestinal endoscopy;De Masi;Gastrointest Endosc,1969
2. Arrhythmias and ischemic change of the heart induced by gastric endoscopic procedures;Fujita;Am J Gastroenterol,1975
3. Arrhythmias during upper gastrointestinal endoscopy;Mathew;Angiology,1979
4. Continuous electrocardiographs monitoring with Holter electrocardiocorder throughout all stages of gastroscopy;Levy;Dig Dis,1977
5. Complications of colon and rectum following diagnosis;Classen;Acta Chir Belg,1977