Ribavirin rather than PEG-interferon pharmacodynamics predict nonresponse to antiviral therapy in naive chronic hepatitis C patients. - van Vlerken, L. G.; Huisman, E. J.; van Soest, H.; Boland, G. J.; Drenth, J. P. H.; Siersema, P. D.; Burger, D. M.; van Erpecum, K. J. (Journal of Viral Hepatitis, 2012)