HepFREEPak: protocol for a multi-centre, prospective observational study examining efficacy and impact of current therapies for the treatment of hepatitis C in Pakistan and reporti... oleh Ambreen Arif, Aliya Hasnain, Auj Chaudhry, Muhammad Asim, Muhammad Nabeel Shafqat, Abeer Altaf, Noor Saba, Polychronis Kemos, M. Azim Ansari, Eleanor Barnes, Chris Metcalfe, Peter Vickerman, Huma Qureshi, Saeed Hamid, Asad Ali Choudhry, Saad Khalid Niaz, Graham R. Foster, Naheed Choudhry