Evidence Base for Treatment
TJ Steiner (lead, and International Field Editor for Headache for the Pain, Palliative and Supportive-Care Group of the Cochrane Collaboration)
Norwegian University of Science and Technology, Trondheim, Norway, and Imperial College London, London, UK
S Derry, University of Oxford, Oxford, UK
R Gray, Duke University, Durham NC, USA
G Kulkarni, National Institute for Mental Health and Neurosciences (NIMHANS), Bangalore, India
GN Rao, National Institute for Mental Health and Neurosciences (NIMHANS), Bangalore, India