| Burns B | Headache Group, Institute of Neurology, National Hospital for Neurology and Neurosurgery, London WC1N 3BG, UK. |
| Cittadini E | Institute of Neurology, The National Hospital for Neurology and Neurosurgery, Queen Square, London, England. |
| Cittadini, E | Institute of Neurology and the National Hospital for Neurology and Neurosurgery, London, UK. |
| Cohen AS | Headache Group, Institute of Neurology, The National Hospital for Neurology and Neurosurgery, Queen Square, London, UK. |
| Cohen, Anna S | Institute of Neurology, Queen Square, London WC1N 3BG, UK. |
| Goadsby PJ | Institute of Neurology, Queen Square, London WC1N 3BG, UK. peterg@ion.ucl.ac.uk |
| Goadsby, P J | Institute of Neurology and the National Hospital for Neurology and Neurosurgery, London, UK. |
| Goadsby, Peter J | Institute of Neurology, Queen Square, London WC1N 3BG, UK. |
| Kaube, Holger | Department of Clinical Neurology, Institute of Neurology, London, UK. |
| Matharu MS | Institute of Neurology, Queen Square, London WC1N 3BG, UK. |
| Matharu, Manjit S | Headache Group, Institute of Neurology, Queen Square, London, United Kingdom. |
| Paemeleire K | Headache Group, Institute of Neurology, Queen Square, London, UK. |