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- [35] INDICATIONS FOR UPPER GASTRO-INTESTINAL ENDOSCOPY The Accuracy of the American Society for Gastrointestinal Endoscopy Guidelines in a Portuguese Hospital ACTA MEDICA PORTUGUESA, 2008, 21 (05): : 427 - 432
- [37] COMPARISON OF DIAGNOSING UPPER GASTRO-INTESTINAL BLEEDING BEFORE AND AFTER THE INTRODUCTION OF EMERGENCY ENDOSCOPY DEUTSCHE GESUNDHEITSWESEN-ZEITSCHRIFT FUR KLINISCHE MEDIZIN, 1979, 34 (10): : 433 - 434