| Authors: |
Haywood KL; Warwick Research in Nursing, Warwick Medical School, University of Warwick, Coventry, UK., Achana F; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK.; Nuffield Department of Primary Care Health Sciences, Oxford University, Oxford, UK., Nichols V; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK., Pearce G; School of Psychology, Social and Behavioural Sciences, Coventry University, Coventry, UK., Box B; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK., Muldoon L; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK., Patel S; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK., Griffiths F; Social Science and Systems in Health, Warwick Medical School, University of Warwick, Coventry, UK., Stewart K; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK., Underwood M; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK.; University Hospitals Coventry and Warwickshire, Coventry, UK., Matharu MM; The Headache Group, National Hospital for Neurology and Neurosurgery, University College of London Hospitals NHS Foundation Trust, AC1 London, UK. |
