Received: 9 May 2018
Accepted: 8 June 2018
First Online: 16 July 2018
: HPC is an employee of Sandoz Inc. based in the USA and owns stock in Novartis.
: The Letter to the Editor does not contain patient data; therefore, ethics approval and consent for publication is not relevant.
: HPC has no other competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.