Received: 29 July 2019
Accepted: 20 September 2019
First Online: 27 December 2019
Ethics approval and consent to participate
: Ethics waived for the present project as no patients or animals involved in the study.
: Not applicable as patients are not involved in the present study.
: SS has received sponsorship from Abbvie for international conference attendance and honorarium from Abbvie for educational presentations and advisory board membership. SS is an investigator for clinical trials with UCB and Abbvie. All other authors declare that they have no conflicts of interest.