Received: 25 March 2019
Accepted: 17 May 2019
First Online: 27 May 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the University of Rostock (approval number A 2014-0089) and conducted in accordance with the Declaration of Helsinki.
: With informed consent, MS patients attended the examination.
: MH received speaking fees and travel funds from Bayer HealthCare, Biogen, Novartis, and Teva. UKZ received research support as well as speaking fees and travel funds from Almirall, Bayer HealthCare, Biogen, Merck Serono, Novartis, Sanofi, and Teva. NF received travel funds from Novartis.