SEVTAR—A multicenter randomized controlled trial to investigate the impact of prophylactic endoluminal placed vacuum sponge for prevention of anastomotic leakage after low rectal r... oleh Leif Schiffmann, Leif Schiffmann, Matthias Becker, Leendert Develing, David Varga-Szabo, Caroline Scheidereiter-Krüger, Hubert Zirngibl, Michael Seifert, Lothar Biermann, Claudia Schlüter, Felicitas Tumczak, Arved Weimann, Boris Jansen-Winkeln, Ingo Wallstabe, Frank Schwandner, Sandra Denecke, Clemens Schafmayer, Imad Kamaleddine, Albrecht Stier, Katharina Haegele, Michael Kindler, Sabine Michling, Ernst-Wilhelm Horling, Ulrike Denzer