1. Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
2. Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
3. Ankineedu Stroke Unit, Heart and Brain Center, Lalitha Super Specialty Hospital, Kothapet, Guntur, Andhra Pradesh, India
4. Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
5. The Institute of Neurological Sciences, Care Hospital, Hyderabad, Andhra Pradesh, India