Funding for this research was provided by:
PTC Therapeutics International Ltd
Received: 9 February 2021
Accepted: 14 July 2021
First Online: 10 August 2021
: This study was reviewed and approved by the WIRB-Copernicus Group Independent Review Board (tracking number: #20193514).
: All participants provided verbal informed consent at the start of the interviews.
: Kate Williams and Sarah Acaster are employees of Acaster Lloyd Consulting Ltd. Katharina Buesch, Ian Davidson and Mark Rance are employees of PTC Therapeutics.