Acknowledgment
The authors thank Janet Collins (Interdisciplinary Crohn-Colitis Centre Rhein-Main, Frankfurt, Germany) for writing assistance, editing, and proofreading the manuscript.
Declaration of interest
J. Stein has received consultancy fees from AbbVie, Fresenius-Kabi, Immundiagnostik, MSD, Pharmacosmos, Takeda, and Vifor. Dr. Stein has also received payment for lectures from Abbvie, Falk Foundation, Ferring, Immundiagnostik, MSD, Pharmacosmos, Takeda, Thermofischer and Vifor. Additionally, Dr. Stein has received payment for manuscript preparation from Abbvie, Falk Foundation and MSD. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
Reviewer disclosures
Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.