Non-invasive evaluation of cystic fibrosis related liver disease in adults with ARFI, transient elastography and different fibrosis scores. oleh Thomas Karlas, Marie Neuschulz, Annett Oltmanns, Andrea Güttler, David Petroff, Hubert Wirtz, Jochen G Mainz, Joachim Mössner, Thomas Berg, Michael Tröltzsch, Volker Keim, Johannes Wiegand