[1] Univ Glasgow, Sch Med, Glasgow G12 8QQ, Lanark, Scotland
[2] Univ Sheffield, Royal Hallamshire Hosp, Acad Neurol Unit, Sheffield S2 1JF, S Yorkshire, England
[3] Univ Liverpool, Walton Ctr Neurol & Neurosurg, Dept Neurol, Liverpool L9 7LJ, Merseyside, England
[4] Barberry, Reg Complex Epilepsy Serv, 25 Vincent Dr, Birmingham B15 2FG, W Midlands, England
[5] Royal Victoria Hosp, Dept Neurol, Grosvenor Rd, Belfast BT12 6BA, Antrim, North Ireland
[6] Western Gen Hosp, Dept Clin Neurosci, Edinburgh EH4 2XU, Midlothian, Scotland
[7] Royal London Hosp, Whitechapel Rd, London E1 1BB, England
[8] Univ Hosp Birmingham, New Queen Elizabeth Hosp Birmingham, Birmingham B15 2WB, W Midlands, England
[9] Kings Coll Hosp London, Dept Neurol, London, England
[10] St Thomas Hosp, Womens Hlth Directorate, London SE1 7EH, England
[11] Ninewells Hosp, Dundee DD1 9SY, Scotland
[12] Univ Wales Hosp, Dept Neurol, Alan Richens Epilepsy Unit, Cardiff CF14 4XW, S Glam, Wales
[13] Southmead Hosp, Dept Neurol, Brunel Bldg,Level 2,Gate 3, Bristol BS10 5NB, Avon, England
[14] Queen Mary Univ London, Barts & London Sch Med & Dent, Blizard Inst, Maternal & Perinatal Hlth Womens Hlth Res Unit, London, England
[15] UCL Inst Neurol, Queen Sq, London WC1N 3BG, England
[16] Walton Ctr NHS Fdn Trust, Liverpool L9 7LJ, Merseyside, England