To biopsy or not to biopsy: Evaluation of a large German cohort of patients with unclear hepatopathy and negative for viral hepatitis A, B, or C - Rey, JW; Doernberger, V; Barreiros, AP; Krupp, M; Hoffman, A; Kiesslich, R; Müller-Schilling, M; Galle, PR; Jahn, A; Teufel, A (Zeitschrift für Gastroenterologie, 2014)