Received: 20 October 2020
Revised: 7 March 2021
Accepted: 29 March 2021
First Online: 13 May 2021
Compliance with ethical standards
: DLC has received honoraria and travel support from Novartis and Ipsen, outside the scope of the submitted work. NP has received honoraria from AstraZeneca, Bayer, Boehringer Ingelheim, Roche Pharma AG, Merck Serono and Ipsen and has consulted for Merck Serono, Amgen, Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim, Bristol-Myers Squibb, Eli Lilly, Pfizer, Novartis, Roche Pharma AG, Ipsen, Merck, Baxalta, Specialised Therapeutics and AstraZeneca, outside the scope of the submitted work.