1. University of Catania; Catania Italy
2. University of Aleppo; Aleppo Syrian Arab Republic
3. Department of Hematology; Syrian Arab Republic Ministry of Health; Aleppo Syrian Arab Republic
4. Neurology; Charleston Area Medical Center; Charleston West Virginia USA
5. San Jacopo Hospital; Pistoia Italy
6. University of Cartagena; Cartagena Colombia
7. Neuromodulation Center, Spaulding Rehabilitation Hospital and Massachusetts General Hospital; Harvard Medical School; Boston USA
8. Vicerrectorado de Investigación, Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud; Universidad San Ignacio de Loyola; Lima Peru
9. Department of Neurophysiopathology; Azienda Ospedaliera di Perugia; Perugia Italy
10. Cochrane Neurological Sciences Field; Perugia Italy
11. UO Neurologia; USL Umbria 1; Città di Castello Italy
12. University of L’Aquila; L’Aquila Italy
13. Neurology and Stroke Unit; Avezzano-Sulmona Hospital; L’Aquila Italy
14. Migraine Centre; San Salvatore Hospital; L’Aquila Italy
15. Cochrane Neurological Sciences Field Director; Perugia Italy