From April 1984 to April 1986, 45 bioprosthetic valves mounted on flexible stent made of Elgiloy were used to replace heart atrio-ventricular valves.

 
  • 本文报道应用弹性合金钢丝作支架制成的生物瓣膜,为45名病人替换心脏房室瓣的经验。
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