BMJ Open Griffin, D, Dickenson, E, Wall, P, Donovan, J L, Foster, N E, Hutchinson, C, Parsons, N, Petrou, S, Realpe, A, Achten, J, Achana, F A, Adams, A, Costa, M, Griffin, J, Hobson, R, Smith, J 2016, ' Protocol for a multi-centre, parallel-arm, 12-month, randomised controlled trial of arthroscopic surgery versus conservative care for femoroacetabular impingement syndrome (FASHIoN) ', BMJ Open, vol. 6, no. 8, e012453 . https://doi.org/10.1136/bmjopen-2016-012453