“…(Sonneveldt, van Leeuwen, and Blom, 1962). Various explanations have been put forward to explain the malabsorption in these patients but it now seems likely that a change of bowel flora, probably consequent upon stasis in the small bowel, is the most common cause (McBrien and Lockhart Mummery, 1962;Kahn, Jeffries, and Sleisenger, 1966;Salen, Goldstein, and Wirts, 1966;Cliff, Herber, and Demis, 1966). A striking response of diarrhoea and steatorrhoea to broad-spectrum antibiotic therapy was seen in several of our cases, although the involvement was not always so obvious if subsequent courses of treatment were given.…”