1 Department of Internal Medicine IV, Jena University Hospital, Germany, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany. andreas.stallmach@med.uni-jena.de.
2 Department of Internal Medicine IV, Jena University Hospital, Germany, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany.