Muhammad Omar Qureshi
Department of Gastroenterology, Shifa International Hospital and Shifa College of Medicine, Islamabad, Pakistan
Farzana Shafqat
Department of Gastroenterology, Shifa International Hospital and Shifa College of Medicine, Islamabad, Pakistan
Shafiq Ahmed
Department of Gastroenterology, Shifa International Hospital and Shifa College of Medicine, Islamabad, Pakistan
Tariq Khan Niazi
Department of Medicine, Shifa International Hospital and Shifa College of Medicine, Islamabad, Pakistan
Nasir Khan Khokhar
Department of Gastroenterology / Medicine, Shifa International Hospital, Islamabad, Pakistan