[1] Heinrich Heine Univ Duesseldorf, Univ Hosp, Dept Obstet & Gynecol, Dusseldorf, Germany
[2] Heinrich Heine Univ Duesseldorf, Med Fac, Dusseldorf, Germany
[3] Heinrich Heine Univ Duesseldorf, Univ Hosp, Gen Visceral & Pediat Surg, Dusseldorf, Germany
[4] Heinrich Heine Univ Duesseldorf, Dept Diagnost & Intervent Radiol, Univ Hosp, Dusseldorf, Germany
[5] Heinrich Heine Univ Duesseldorf, Dept Diagnost & Intervent Radiol, Med Fac, Dusseldorf, Germany