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We have published a paper describing the REGAIN protocol:

We have published a paper describing the development of the REGAIN intervention:

Development of an online intervention for... | NIHR Open Research

The results of the REGAIN study are published in this paper:

McGregor G, Sandhu H, Bruce J, Sheehan B, McWilliams D, Yeung J et al. Clinical effectiveness of an online supervised group physical and mental health rehabilitation programme for adults with post-covid-19 condition (REGAIN study): multicentre randomised controlled trial 



Please direct all enquiries to the REGAIN team.