Article History
Accepted: 15 April 2021
First Online: 28 May 2021
Competing interests
: S.T. has received honoraria (speaker fees) from Abbott, Astellas Pharma, AstraZeneca, Eva Pharma, Grunenthal, Hikma, Impeto Medical, Merk, Novo Nordisk and Pfizer. S.T. is on, or has been on, the Advisory Board of Angelini, Bayer, Mitsubushi Tanabe Pharma, Nervo, Trigocare International and Worwag Pharma. G.S. and D.S. declare no competing interests.