Platelet-Derived MHC Class I Confers a Pseudonormal Phenotype to Cancer Cells That Subverts the Antitumor Reactivity of Natural Killer Immune Cells. - Placke, Theresa; Örgel, Melanie; Schaller, Martin; Jung, Gundram; Rammensee, Hans-Georg; Kopp, Hans-Georg; Salih, Helmut Rainer (Cancer Research, 2012)