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\bibitem{Dietel_etal2002} Dietel, M., Dudenhausen, J., \& Suttorp, N. (2002). Sonderdruck aus Harrisons Innere Medizin 2 : Kapitel 297, chronische Hepatitis. In \textit{Harrisons principles of internal medecine} (12). Berlin: ABW Wissenschaftsverlag.

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