Received: 25 May 2020
Accepted: 10 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: This study obtained ethical approval from the National Health Service South West - Cornwall & Plymouth Research Ethics Committee (15/06/2017, 15/NW/0502). We obtained full written consent from participants in this study.
: Not applicable.
: EC is an unpaid medical advisor for the Sussex & Kent ME/CFS Society.