1. Department of Neurology; Miami Children's Hospital; Miami Florida U.S.A
2. Department of Epilepsy and Neurophysiology; Children's National Medical Center; Washington Washington U.S.A
3. Department of Neurology; All India Institute of Medical Sciences; New Delhi India
4. Department of Neurology; Children's Hospital Boston; Boston Massachusetts U.S.A
5. Division of Neurosurgery; UCLA School of Medicine; Los Angeles California U.S.A
6. UCL-Institute of Child Health and Great Ormond Street Hospital for Children NHS Trust; London United Kingdom