Citation: G. Alemayehu et G. Jarnerot, SAME-DAY UPPER AND LOWER ENDOSCOPY IN PATIENTS WITH OCCULT BLEEDING, MELENA, HEMATOCHEZIA, AND OR MICROCYTIC ANEMIA - A RETROSPECTIVE STUDYOF 224 PATIENTS, Scandinavian journal of gastroenterology, 28(8), 1993, pp. 667-672