Anerythropoiesis 红细胞生成减少; aplastic anemia 再生障碍性贫血 Pure erythrocytic aplastic anemia 纯红再障 回复旦大学上海医学院儿科学系* Anerythropoiesis; * 红细胞生成减少; aplastic anemia 再生障碍性贫血 Pure erythrocytic aplastic anemia 纯红再障