Article History

Accepted: 14 February 2020

First Online: 2 April 2020

Change Date: 19 June 2020

Change Type: Correction

Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Change Date: 20 May 2020

Change Type: Correction

Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Change Date: 6 April 2020

Change Type: Correction

Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Competing interests

: S.D. has served as a speaker, consultant and advisory board member for Schering-Plough, AbbVie, Merck Sharp & Dohme, UCB Pharma, Ferring, Cellerix, Takeda Pharmaceutical Company, Nycomed, Pharmacosmos, Actelion, Alpha Wasserman, Genentech, Grünenthal, Pfizer, AstraZeneca, Novo Nordisk, Cosmo Pharmaceuticals, Vifor, Johnson & Johnson and Nikkiso Europe GmbH. L.P.-B. has received consulting fees from AbbVie, Amgen, Biogaran, Boehringer Ingelheim, Bristol-Myers Squibb, Celltrion, Ferring, Genentech, HAC Pharma, Hospira, Index Pharmaceuticals, Janssen, Lilly, Merck, Mitsubishi, Norgine, Pfizer, Pharmacosmos, Pilege, Sandoz, Takeda, Therakos, Tillotts, UCB Pharma and Vifor and lecture fees from AbbVie, Ferring, HAC Pharma, Janssen, Merck, Mitsubishi, Norgine, Takeda, Therakos, Tillotts and Vifor. A.S. has acted as a consultant or speaker for Ethicon, Olympus, Frankenman, Transenterix (not active), Tigenyx, Pfizer, Takeda and Sandoz. P.G.K has been a lecturer for AbbVie, Janssen, Pfizer and Takeda and is a member of the advisory board of AbbVie, Pfizer and Takeda. A.K. has served as an adviser to Boehringer Ingelheim, Ferring, Genentech, GlaxoSmithKline, Gilead, Hospira, Janssen, Pfizer, and VHSquared. R.P. has received consultant and/or lecture fees from AbbVie, Amgen, AstraZeneca, Axcan Pharma (now Aptalis), Biogen Idec, Bristol-Myers Squibb, Centocor, ChemoCentryx, Eisai Medical Research Inc., Elan Pharmaceuticals, Ferring, Genentech, GlaxoSmithKline, Janssen, Merck Sharp & Dohme, Millennium Pharmaceuticals (now Takeda Oncology), Ocera Therapeutics Inc., Otsuka America Pharmaceutical, Pfizer, Shire Pharmaceuticals, Prometheus Laboratories, Schering-Plough Corporation, Synta Pharmaceuticals Corp., Teva, UCB Pharma and Warner Chilcott. S.C.N. has received consulting and speaker fees from AbbVie, Ferring, Janssen, Menarini and Takeda, has served as a scientific advisory board member for AbbVie, Ferring and Takeda and has received research grants from AbbVie, Ferring and Janssen. The other authors declare no competing interests.