Keywords thymoma;myasthenia gravis;acetylcholine receptor midsize neurofilament;T lymphocyte subset;MHC;B lymphocyte subset;AchR;NF-M;TNF;gene polymorphism;

• 胸腺瘤;重症肌无力;乙酰胆碱受体;神经元细丝蛋白;T淋巴细胞亚群;主要组织相容性抗原;B淋巴细胞;神经元中间丝蛋白;肿瘤坏死因子;基因多态性;