Article History
First Online: 11 May 2018
Competing interests
: M.G.-S. has served as an adviser and speaker for Heel, as a speaker for Schwabe and as an adviser for Yakult. P.E. received an unrestricted grant from SymbioPharm, served as adviser for Allergan, Almirall, AstraZeneca, Boehringer, Biocodex, Ferring, GA, Heel, SymbioPharm, TEVA, and UCB and as speaker for Almirall, Bayer/Steigerwald, Biogene, Boehringer, Chiesi, Heel and Sanofi. G.H. received unrestricted grants from Bayer, Commonwealth Laboratories, Falk Foundation and Takeda and served as speaker for Schwabe.