Physio4FMD: protocol for a multicentre randomised controlled trial of specialist physiotherapy for functional motor disorder oleh Glenn Nielsen, Jon Stone, Marta Buszewicz, Alan Carson, Laura H. Goldstein, Kate Holt, Rachael Hunter, Jonathan Marsden, Louise Marston, Hayley Noble, Markus Reuber, Mark J. Edwards, on behalf of the Physio4FMD Collaborative Group