F. D'Amico has served as a speaker for AbbVie, AnaptysBio, Ferring, Fresenius Kabi, Sandoz, Janssen, Galapagos, Giuliani, Lilly, MSD, Takeda, Tillotts, and Omega Pharma; he has also served as an advisory board member for Ferring, Fresenius Kabi, Galapagos, AbbVie, Janssen, Lilly, Takeda, and Nestlè. S. Bencardino declared no conflict of interest. S. Danese has served as a speaker, consultant, and advisory board member for Schering-Plough, AbbVie, Actelion, Alphawasserman, AstraZeneca, Cellerix,