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- [7] EXPERIENCE WITH ENDOSCOPY OF THE UPPER GASTRO-INTESTINAL SYSTEM ZEITSCHRIFT FUR KINDERCHIRURGIE UND GRENZGEBIETE, 1979, 27 : 67 - 69
- [8] VARIABLE PREMEDICATION FOR UPPER GASTRO-INTESTINAL ENDOSCOPY AMERICAN JOURNAL OF GASTROENTEROLOGY, 1979, 71 (02): : 158 - 163