Health related quality of life after laparoscopic and open liver resection. data from the OSLO-COMET randomized controlled trial. (September 2018) - Fretland, Å.A.; Dagenborg, V.J.; Bjørnelv, G.M.; Aghayan, D.; Kristiansen, R.; Fagerland, M.W.; Barkhatov, L.; Bjørnbeth, B.A.; Edwin, B.