Received: 23 April 2021
Accepted: 8 January 2022
First Online: 16 January 2022
: For the PulMiCC cohort and the nested RCT was granted by the National Research Ethics Committee London—Hampstead 10/H0720/5. This required written informed consent which was obtained for every patient.
: The journal “Colorectal Disease” has given full permission to republish the figure which was originally published there. The authors of this letter all give their consent for publication.
: The authors TT NRW and FM have no competing interests to declare.