1. Department of Community Medicine, Bhaskar Medical College, Hyderabad, India
2. Department of Anatomy, Government Medical College, Nagarkurnool, Telangana, India
3. Department of Community Medicine, Gandhi Medical College, Secunderabad, Telangana, India
4. Department of Ophthalmology, Mahavir Institute of Medical Sciences, Vikarabad, Telangana, India
5. Department of Community Medicine, Mahavir Institute of Medical Sciences, Vikarabad, Telangana, India