[1] Klinikum Chemnitz gGmbH, Klin Allgemein & Viszeralchirurg, Chemnitz, Germany
[2] Klinikum Chemnitz gGmbH, Dept Internal Med 2, Chemnitz, Germany
[3] Univ Dresden, Fac Med Carl Gustav Carus, Dept Diagnost, Klinikum Chemnitz gGmbH, Chemnitz, Germany
[4] Klinikum Chemnitz gGmbH, Dept Gynecol & Obstet, Chemnitz, Germany