_:b680661 . . _:b680661 . "Host-Tumor InteractionPTNCI" . _:b680661 . "CL414400"^^ . "C19365"^^ . "Host-Tumor Interaction"^^ . . "The efforts by the host to reject a tumor, and the mechanisms by a tumor to evade recognition by the immune system.NCI" . "Cell Function"^^ . _:b680661 . "Host-Tumor Interaction"^^ . "Host-Tumor_Interaction"^^ .