Morgan TR, Lambrecht RW, Bonkovsky HL, Chung RT, Naishadham D, Sterling RK, Fontana RJ, Lee WM, Ghany MG, Wright EC, O'Brien TR. DNA polymorphisms and response to treatment in patients with chronic hepatitis C: results from the HALT-C trial. J Hepatol. 2008 Oct; 49(4):548-56.