JK has received honoraria from Bristol-Myers Squibb, UCB, Sun Pharma, Sanofi, Novartis, Beiersdorf AG, doctorderma Online Hautarzt and Melatech, outside the submitted work. JK has received travel support from SUN Pharma and Pierre Fabre, outside the submitted work. FA and IHA received speaker fees from Sanofi, outside the submitted work. The other authors declare no conflict of interest.
Matthes et al. (Fri,) studied this question.