The lived experience of chronic headache: a systematic review and synthesis of the qualitative literature by Nichols, VP, Ellard, DR, Griffiths, FE, Kamal, A, Underwood, M, Taylor, SJC

The CHESS trial: protocol for the process evaluation of a randomised trial of an education and self-management intervention for people with chronic headache by Nichols, VP, Ellard, DR, Griffiths, FE, Underwood, M, Taylor, SJC, Patel, S, Bright, M, Carnes, D, Davies, B, Eldridge, S, Ellard, D, Evans, S, Griffiths, F, Haywood, K, Hee, SW, Matharu, M, Petrou, S, Pincus, T, Sandhu, H, Taylor, S, Wilkie, A, Higgins, H, Nichols, V, Patel, S, Potter, R, Boss, D, White, K, Achana, F, Mistry, H, Caldwell, F, Probyn, K, Team, CHESS