1. Department of Community Medicine, Pondicherry Institute of Medical Sciences, Puducherry, India
2. Department of Statistics, Manonmaniam Sundaranar University, Tirunelveli, India
3. Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education & Research, Pondicherry, India
4. Department of Community Medicine, Vellammal Medical College Hospital & Research Institute, Madurai, India