HBsAg seroconversion in a HIV co-infected patient during combination therapy with adefovir dipivoxil and pegylated interferon alfa 2b followed by HBsAg seroreversion and viral reoccurrence after stopping HBV directed antiviral treatment - Wursthorn, K; Buggisch, P; Lütgehetmann, M; Zöllner, B; Petersen, J (Zeitschrift für Gastroenterologie, 2006)