1. Post Graduate, Department of Community Medicine, Vinayaka Missions Kirupananda Variyar Medical College and Hospitals, Vinayaka Mission Research Foundation (Deemed to be University), Salem, Tamil Nadu, India
2. Professor and Head, Department of Community Medicine, Vinayaka Missions Kirupananda Variyar Medical College and Hospitals, Vinayaka Mission Research Foundation (Deemed to be University), Salem, Tamil Nadu, India
3. Assistant Professor, Department of Community Medicine, Vinayaka Missions Kirupananda Variyar Medical College and Hospitals, Vinayaka Mission Research Foundation (Deemed to be University), Salem, Tamil Nadu, India
4. Professor, Department of Community Medicine, Vinayaka Missions Kirupananda Variyar Medical College and Hospitals, Vinayaka Mission Research Foundation (Deemed to be University), Salem, Tamil Nadu, India