"It's just part of who I am..." Living with chronic headache: voices from the CHESS trial, a qualitative study. - Nichols, Vivien P.; Ellard, David R.; Griffiths, Frances E.; Underwood, Martin; Haywood, Kirstie L.; Taylor, Stephanie J. C.; Nichols, Vivien; Griffiths, Frances; Achana, Felix; Carnes, Dawn; Eldridge, Sandra; Hee, Siew Wan; et al. (BMC Neurology, 2024)