The Delphi and GRADE methodology used in the PSOGI 2018 consensus statement on Pseudomyxoma Peritonei and Peritoneal Mesothelioma

R J Lurvink, L Villeneuve, K Govaerts, I H J T de Hingh, B J Moran, M Deraco, K Van der Speeten, O Glehen, V Kepenekian, S Kusamura