Butterworth, Roger F. http://orcid.org/0000-0002-1503-5850
Article History
Accepted: 20 May 2021
First Online: 21 June 2021
Declarations
:
: No sources of funding were received for the preparation of this article.
: Roger F. Butterworth has received ad hoc payments for consulting and speaker fees from Salix Pharmaceuticals (USA), Umecrine Pharmaceuticals (Sweden) and Merz Pharmaceuticals (Germany).
: Not applicable.
: Not applicable.
: Not applicable.
: Not applicable.
: Not applicable.
: Roger F. Butterworth was the sole author of this article.