Correction: use of mesh in laparoscopic paraesophageal hernia repair: a meta-analysis and risk-benefit analysis - Müller, Beat P.; Kenngott, Hannes Götz; Stock, Christian; Linke, Georg R.; Fritz, Franziska; Nickel, Felix; Diener, Markus K.; Wente, Moritz N.; Büchler, Markus W.; Fischer, Lars (PLOS ONE, 2017)