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\bibitem{Hadziyannis_etal2004} Hadziyannis, S. J., Sette, H., Morgan, T. R., Vijayan, B., Diago, M., Marcellin, P., et al. (2004). Peginterfreon-α2a and ribavirin combination therapy in chronic hepatitis C : a randomized study of treatment duration and ribavirin dose. \textit{Annals of internal medecine}, \textit{140}(5; 02.03.2004), 346--357.

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