女，７岁。因皮肤、粘膜苍白，疲乏，腹胀３年第２次住本院。发病３年内因上述症状先后６次住多家医院诊治，３次骨穿均提示：增生性贫血。坚持口服铁剂及叶酸等并多次输血，病情无好转。查体：体温３７．２℃，脉搏１２０次／分，呼吸２３次／分，体重２０ｋｇ。神清，精... Female, 7 years old. Due to the skin, mucous membrane pale, tired, bloating 3 years 2 times in our hospital. Within 3 years of onset of the above symptoms have 6 times to live in multiple hospital diagnosis and treatment, 3 times bone wear tips: hyperplastic anemia. Adhere to oral iron and folic acid and many other blood transfusion, the condition did not improve. Physical examination: body temperature 37.2 ℃, pulse 120 beats / min, breathing 23 beats / min, weight 20kg. Clear, refined ...