1. Department of Neurology, Bharati Vidyapeeth University Medical College, Pune
2. Sri Venkateswara Medical College, Tirupati
3. University of Baghdad, Al-Kindy College of Medicine, Baghdad, Iraq
4. Internal Medicine, Government Medical College, Omandurar, Chennai, India
5. Internal Medicine, Mayo Clinic
6. Internal Medicine, Lugansk State Medical University, Lugansk, Ukraine
7. Privolzhsky Research Medical University, Nizhny Novgorod, Russia
8. Manhal University, Khartoum, Sudan
9. Mayo Clinic, Rochester, Minnesota, USA