Frequency of pneumothorax and haemothorax after primary open versus closed implantation strategies for insertion of a totally implantable venous access port in oncological patients: study protocol for a randomised controlled trial - Hüttner, Felix; Bruckner, Thomas; Alldinger, Ingo; Hennes, Roland; Ulrich, Alexis; Büchler, Markus W.; Diener, Markus K.; Knebel, Phillip (Trials, 2015)