Conflicts of interest R.S. is Director and Founder of Samson Clinical. He sits on the pharmaceutical advisory boards for Eli Lilly, Pfizer and LEO Pharma. He is on the speakers’ bureau for AbbVie and Novartis. He is principal investigator in clinical trials for Amgen, Novartis, Arcutis Biotherapeutics, Aerotech, Merck, Celgene, Coherus BioSciences, Janssen, Regeneron, MedImmune, Glaxo Smith Kline, Samson Clinical, Boehringer Ingelheim, Oncobiologics, Roche, Ascend, Dermira, AstraZeneca, Akesobio, Reistone Biopharma, UCB, Sanofi, Connect, Arena, Sun Pharma, Bristol-Myers Squibb and Galderma. The other authors declare no conflicts of interest.