Treatment with 40 kDa peginterferon alfa-2A (Pegasys®) in combination with ribavirin significantly enhances quality of life compared with interferon alfa-2B plus ribavirin: Tarek I Hassanein, University of California, San Diego, San Diego, CA; Graham Cooksley, Royal Brisbane Hospital, Herston Australia; Mark Sulkowski, Johns Hopkins University, Baltimore, MD; Coleman Smith, Minnesota Clinical Research Center, Saint Paul, MN; George Marinos, Prince of Wales Hospital, Randwick Australia; Ming-Yang Lai, National Taiwan University Hospital, Taipei Taiwan; Giuseppe Pastore, Universita Polichinico, Bari Italy; Rafael Trejo-Estrada, Centro Medico Nacional Siglo XXI, Mexico, D.F. Mexico; Ana Horta E Vale, Clinica Diagnostico Medico Integral, Vila Nova de Gaia Portugal; Anna S Lok, University of Michigan Health System, Ann Arbor MI; Amy Lin, Jesse Green, Hoffmann-La Roche Inc, Nutley, NJ