[1] Univ Bielefeld, Univ Hosp OWL, Dept Gen & Visceral Surg,Ctr Gen Vasc Thorac & Vi, Protestant Hosp,Bethel Fdn, Campus Bielefeld Bethel, Bielefeld, Germany
[2] NESA, Berlin, Germany
[3] Univ Bielefeld, Univ Hosp OWL, Ctr Comp Assisted & Robot Urol, Protestant Hosp,Bethel Fdn, Campus Bielefeld Bethel, Bielefeld, Germany
[4] Univ Bielefeld, Univ Hosp OWL, Dept Psychiat & Psychotherapy, Sect Gerontopsychiat,Protestant Hosp,Bethel Fdn, Campus Bielefeld Bethel, Bielefeld, Germany
[5] Univ Bielefeld, Univ Hosp OWL, Dept Internal Med & Gastroenterol, Protestant Hosp,Bethel Fdn, Campus Bielefeld Bethel, Bielefeld, Germany