Acute Stroke

• Post Graduate Institute of Medical Education and Research — Chandīgarh, Haryana, India
• Armed Forces Medical College — Pune, Maharashtra, India
• All India Institute of Medical Sciences — New Delhi, National Capital Territory of Delhi, India
• Army Hospital (R & R Hospital) — New Delhi, National Capital Territory of Delhi, India

• Department of diagnostic and interventional Neuroradiology — Homburg, Saarland, Germany

• Department of Neurology, Aarhus University Hospital — Aarhus, Denmark

• Department of Neurology, Goethe-University — Frankfurt am Main, Germany

• Hôpital d'Argenteuil, Emergency Unit — Argenteuil, France
• Hôpital Avicenne, Emergency Unit — Bobigny, France
• Hôpital Ambroise Paré, Emergency Unit — Boulogne, France
• Hôpital Beaujon, Emergency Unit — Clichy, France

• Central Texas Veterans Health Care System — Temple, Texas, United States

Not specified

• Institute of Neurological Sciences — Glasgow, United Kingdom