Effects of Acacia Fiber and Probiotic Bifidobacterium Lactis (BLa80) on Gastrointestinal Complaints in Constipation-Predominant Irritable Bowel Syndrome: A Randomized Double-Blind Placebo-Controlled Trial   Authors: Lonneke Janssen Duijghuijsen, Maartje van den Belt, Iris Rijnaarts, Paul Vos, Damien Guillemet, Ben Witteman, Nicole de Wit Journal: European Journal of Nutrition...