1 Department of Medical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India.
2 Department of Medical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India. senthamizh2909@gmail.com.
3 Department of Biostatistics, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India.