Update of the simplified criteria for autoimmune hepatitis: Evaluation of the methodology for immunoserological testing

Johanna Galaski, Christina Weiler‐Normann, Miriam Schakat, Kalliopi Zachou, Paolo Muratori, Sibylle Lampalzer, Friedrich Haag, Christoph Schramm, Marco Lenzi, George Ν. Dalekos, Ansgar W. Lohse