title: Reply.
authors.affiliation: Departments of Neurology, Shifa International Hospital, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Hassaan Qavi
authors.forename: Sahla
authors.initials: S
authors.lastname: Hammad
authors.affiliation: Departments of Radiology, Shifa International Hospital, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan.
authors.forename: Atif I
authors.initials: AI
authors.lastname: Rana
authors.affiliation: Departments of Gastroenterology and Hepatology, Shifa International Hospital, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Salih
authors.affiliation: Departments of Gastroenterology and Hepatology, Shifa International Hospital, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan.
authors.forename: Najmul
authors.initials: N
authors.lastname: Hassan Shah
authors.affiliation: Liver Transplantation, Hepatobiliary and Pancreatic Surgery, Shifa International Hospital, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan.
authors.forename: Faisal S
authors.initials: FS
authors.lastname: Dar
authors.affiliation: Departments of Neurology, Shifa International Hospital, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan.
authors.forename: Arsalan
authors.initials: A
authors.lastname: Ahmad