Acknowledgements
We thank Ulla Damgaard Munk for expert technical assistance.
Funding: Merck A/S, Denmark; an affiliate of Merck KGaA, Darmstadt, Germany.
Conflicts of interest: LØJ received support for congress participation from Merck. MLE received a speaker fee from Merck. AEP was affiliated with Merck during conductance of the study, and AEP is now an employee with Almirall, but the work is unrelated to this employment. AEP also host a guest affiliation with University of Copenhagen. ZI has served on scientific advisory boards, served as a consultant, received support for congress participation, received speaker honoraria, and received research support among others from Biogen, Merck-Serono, Sanofi-Genzyme, Novartis, Roche, Lundbeckfonden. ÅFS, ABW, and KHH have nothing to declare.