S63 Preanalytical Variability of Fecal Calprotectin in the Monitoring of Inflammatory Bowel Disease-Related Inflammation. (December 2022) - Schröder, Oliver; Farrag, Karima; Böcher, Axel; Helmschrodt, Anja; Aksan, Ayşegül; Ehehalt, Robert; Stein, Jürgen