Pigs transgenic for human thrombomodulin have elevated production of activated protein C - Petersen, B; Ramackers, W; Tiede, A; Lucas-Hahn, A; Herrmann, D; Barg-Kues, B; Schuettler, W; Friedrich, L; Schwinzer, R; Winkler, M; Niemann, H (Xenotransplantation, 2009)