P.G.K. declares that he has received scientific grants from Pfizer and Takeda, and consulted for Abbvie, Janssen, Pfizer and Takeda. S.V. declares that she has received grant support from AbbVie, Janssen, Merck Sharpe & Dohme, Pfizer and Takeda; speaker fees from AbbVie, Dr Falk Pharma, Ferring, Hospira, Merck Sharpe & Dohme, Pfizer, Takeda and Tillots; and has consulted for AbbVie, Arena, Amgen, Celgene, Eli Lilly, Ferring, Galapagos, Genentech/Roche, Gilead, Hospira, Janssen, Merck Sharpe & Dohme, Mundipharma, Pfizer, ProDigest, Progenity, Second Genome, Shire and Takeda.