1. Mashhood Ali:
Department of Gastroenterology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
2. Haseeb Noor:
Department of Gastroenterology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
3. Yasir Rafique Rajwana:
Department of Gastroenterology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
4. Asif Imran:
Department of Gastroenterology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan