Fecal occult blood testing may replace fecal microscopy as the initial screening test in evaluating patients with acute infectious diarrhea: P.K. Bardhan, R. Beltinger, R. Walther, A. Hossain, D. Mahalanabis, K. Gyr. International Center for Diarrhoeal Disease Research, DHaka, Bangladesh and Dept. of Gastroenterology, Basle University, Switzerland