Bibliographical noteFunding Information:
We thank Jennifer Wortman, Owen White and Jeremy E Koenig for their input. This work was funded in part by grants from the National Institutes of Health, Howard Hughes Medical Institute, the Crohn’s and Colitis Foundation of America, The Hartwell Foundation, and the Arnold and Mabel Beckman Foundation.
I, a postdoctoral fellow of FWO-Vlaanderen, thank the ‘Fonds voor Wetenschappelijk Onderzoek’ for financial support. Special thanks also go to Greet Dewaele for critically reading the manuscript.