2）免疫性疾病：常见于系统性红斑狼疮、类风湿性关节炎、皮肌炎、免疫性血小板减少症、无丙种球蛋白血症、异常丙种球蛋白血症等。
O O B-dis I-dis I-dis I-dis I-dis O O O O B-dis I-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis O O