HBcrAg Levels Are Associated With Virological Response to Treatment With Interferon in Patients With Hepatitis Delta por Lisa Sandmann, Cihan Yurdaydin, Katja Deterding, Benjamin Heidrich, Svenja Hardtke, Patrick Lehmann, Birgit Bremer, Michael P. Manns, Markus Cornberg, Heiner Wedemeyer, Benjamin Maasoumy, HIDIT‐II Study Group