1 Department of Gastroenterology, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, 190011, India. avinash.gmc@gmail.com.
2 Department of Gastroenterology, Father Muller Medical College, Mangalore, Karnataka, 575002, India.
3 Department of Gastroenterology, Institute of Medical Sciences-Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India.
4 Department of Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Dhanvantari Nagar, Puducherry, India.
5 Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India.