Financial & competing interests disclosure
R Linker has received compensation for activities with, or research support from, Almirall, Bayer Healthcare, Biogen, Fresenius, Genzyme, Merck, Novartis, Roche and Teva. The author has no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
Writing assistance was provided by Content Ed Net (Madrid, Spain), with funding from Almirall SA (Barcelona, Spain).