Pylorus resection or pylorus preservation in partial pancreatico-duodenectomy (PROPP study): study protocol for a randomized controlled trial
Thilo Hackert*, Thomas Bruckner, Colette Dörr-Harim, Markus K Diener, Phillip Knebel, Werner Hartwig, Oliver Strobel, Stefan Fritz, Lutz Schneider, Jens Werner and Markus W Büchler