1. Government Medical College , Nalgonda , India
2. Rangaraya Medical College , Kakinada , India
3. Squad Medicine and Research , Visakhapatnam, Andhra Pradesh , India
4. Department of General Surgery, Government General Hospital , Nalgonda , India
5. Maulana Azad Medical College , New Delhi , India
6. Dr. Pinnamaneni Siddhartha Institute of Medical Sciences & Research Foundation , Gannavaram, Andhra Pradesh , India
7. NRI Academy of Medical Sciences , Guntur, Andhra Pradesh , India
8. Tbilisi State Medical University , Tbilisi , Georgia