Methods The diagnosis and therapy of cases 21 affected children were retrospectively analyzed.All of them suffered from haemophilia A or B.

• 方法回顾性总结21例手术患儿合并血友病的诊断和治疗,其中重型血友病6例,中型血友病7例,轻型血友病5例,亚临床型血友病3例。