Article History
Received: 18 February 2019
Accepted: 21 August 2019
First Online: 6 September 2019
Compliance with ethical standards
:
: The authors declare they have no conflict of interest related to this work. J.M.B. has received honoraria for invited conferences from Ipsen, Novartis, and Siemens Healthineers.
: Not applicable. This article does not contain any studies with human participants or animals performed by any of the authors other than those previously published and cited in this review article.