Natural killer cells, which are a class of lymphocyte distinct from t cells and B cells, destroy foreign cells (eg, neoplastic cells) even without prior sensitization.
自然杀伤细胞是一类与T细胞和B细胞不同的淋巴细胞，可在未被致敏的情况下破坏外来细胞(如肿瘤细胞)。
She was reported to have suffered for more than a year from respiratory symptoms associated with a neoplastic condition.
据报告，她患有与肿瘤相关的呼吸道症状达一年以上。
Although 9 of the 42 patients had prior endoscopic removal of a gastric neoplastic lesion, only 3 had dysplasia.
虽然对42名患者中的9名进行了胃癌病变的内镜切除，但只有3名有非典型增生。
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