Hall, Charlotte L., Davies, E. Bethan, Andrén, Per, Murphy, Tara, Bennett, Sophie, Brown, Beverley J., Brown, Susan, Chamberlain, Liam, Craven, Michael P., Evans, Amber, Glazebrook, Cris, Heyman, Isobel, Hunter, Rachael, Jones, Rebecca, Kilgariff, Joseph, Marston, Louise, Mataix-Cols, David, Murray, Elizabeth, Sanderson, Charlotte, Serlachius, Eva, Hollis, Chris, "Investigating a therapist-guided, parent-assisted remote digital behavioural intervention for tics in children and adolescents: 'Online Remote Behavioural Intervention for Tics' (ORBIT) trial: protocol of an internal pilot study and single randomised controlled trial", BMJ Open, 2019