Additional file 3: of A yeast fermentate improves gastrointestinal discomfort and constipation by modulation of the gut microbiome: results from a randomized double-blind placebo-controlled pilot trial PinheiroIris RobinsonLarry VerhelstAn MarzoratiMassimo WinkensBjÜrn AbbeelePieter PossemiersSam 2017 Mean values and standard error or the mean (SEM) calculated for the questionnaires PAC-QOL and PSS at visits 1, 2 and 3. (PDF 453 kb)