1. Research Centre for Health, Glasgow Caledonian University, Scotland (B.W., J.R.H., F.v.W.).
2. East of England Ambulance Service NHS Trust, Melbourn, United Kingdom (B.W., S.W.).
3. Department of Neurology, Saarland University, Homburg, Germany (B.W., M.B., K.C.F., S.W.).
4. Department of Neurology, Assiut University Hospitals, Egypt (A.N., E.M.K.).
5. Department of Neurology, Kasralainy School of Medicine, Cairo University, Egypt (F.A.-A.).