1. Post graduate, nal year, Department of Community Medicine, GSL Medical College, Rajahmundry, Andhra Pradesh, India.
2. Associate Professor, Department of Community Medicine, GSL Medical College, Rajahmundry, Andhra Pradesh, India.
3. Professor and Head, Department of Community Medicine, GSL Medical College, Rajahmundry, Andhra Pradesh, India.
4. Professor, Department of Orthopaedics, GSL Medical College, Rajahmundry, Andhra Pradesh, India.