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恶性肿瘤在其生长过程中,能产生一系列生物学和免疫学效应,造成宿主的免疫抑制,以保护肿瘤本身不受机体的攻击而继续
Malignant tumors in its growth process, can produce a series of biological and immunological effects, resulting in host immune suppression, in order to protect the tumor itself from the body’s attack and continue