国际循环网版权所有，谢绝任何形式转载，侵犯版权者必予法律追究。

I prefer not to differentiate between the drug eluting stents as to regards to whether they are first， second or more advanced generations. I Think what we have learnt is a broader theme from comparative DES trials is that not all stents are created equally whether they are polymers， comprised of metal or contain drugs which are anti-proliferative.