About the Authors

Isabelle Cleynen

Contributed equally to this work with: Isabelle Cleynen, Peter Jüni

Affiliation Department of Gastroenterology, Catholic University Leuven, Leuven, Belgium

Peter Jüni

Contributed equally to this work with: Isabelle Cleynen, Peter Jüni

Affiliations Clinical Trials Unit Bern, Bern University Hospital, Bern, Switzerland, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Geertruida E. Bekkering

Affiliation Belgian Centre for Evidence Based Medicine, Katholieke Universiteit Leuven, Leuven, Belgium

Eveline Nüesch

Affiliations Clinical Trials Unit Bern, Bern University Hospital, Bern, Switzerland, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Camila T. Mendes

Affiliation Department of Rheumatology, Clinical Immunology and Allergology, University Hospital of Bern, Bern, Switzerland

Stefanie Schmied

Affiliation Clinical Trials Unit Bern, Bern University Hospital, Bern, Switzerland

Stefan Wyder

Affiliation Department of Rheumatology, Clinical Immunology and Allergology, University Hospital of Bern, Bern, Switzerland

Eliane Kellen

Affiliation Leuven Centre for Cancer Prevention, University Hospital Leuven, Leuven, Belgium

Peter M. Villiger

Affiliation Department of Rheumatology, Clinical Immunology and Allergology, University Hospital of Bern, Bern, Switzerland

Paul Rutgeerts

Affiliation Department of Gastroenterology, Catholic University Leuven, Leuven, Belgium

Séverine Vermeire

Affiliation Department of Gastroenterology, Catholic University Leuven, Leuven, Belgium

Daniel Lottaz

daniel.lottaz@insel.ch

Affiliation Department of Rheumatology, Clinical Immunology and Allergology, University Hospital of Bern, Bern, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

First draft of the paper: IC PJ DL. Conceived and designed the experiments: IC PJ GEB EN DL. Performed the experiments: IC GEB CTM EK DL. Analyzed the data: IC PJ EN SW DL. Contributed reagents/materials/analysis tools: GEB PJ SV PR DL PV SW EN IC. Wrote the paper: IC PJ GEB EN CTM SS SW EK PV PR SV DL.