Funding for this research was provided by:
Received: 5 March 2019
Accepted: 12 September 2019
First Online: 7 November 2019
Ethics approval and consent to participate
: No patients were involved in the work and neither ethics approval nor consent to participate was required.
: No individual person’s data in any form is included in the work.
: GC, SG, HS, AdV and VR are employees of Novartis. JS, TO and BA declare that they have no competing interests.