Supportive Self-Management Program for People With Chronic Headaches and Migraine: A Randomized Controlled Trial and Economic Evaluation.

Underwood M, Achana F, Carnes D, Eldridge S, Ellard DR, Griffiths F, Haywood K, Hee SW, Higgins H, Mistry D, Mistry H, Newton S, Nichols V, Norman C, Padfield E, Patel S, Petrou S, Pincus T, Potter R, Sandhu H, Stewart K, Taylor SJC, Matharu MS.