1. Clinic for Neurology and Psychiatry for Children and Youth, Dr. Subotica 6A, 11000 Belgrade, Serbia. Tel: +381-11-265-8355. Fax: +381-11-264-5064
2. Faculty of Medicine, University of Belgrade, Belgrade, Serbia
3. Clinic for Neurology and Psychiatry for Children and Youth, Belgrade, Serbia
4. Center for Human Molecular Genetics, Faculty of Biology, University of Belgrade, Belgrade, Serbia
5. Institute of Human Genetics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia