الإتاحة: https://doi.org/10.1016/j.ejcts.2005.10.021Testhttp://academic.oup.com/ejcts/article-pdf/29/1/117/17777966/29-1-117.pdfTest
الإتاحة: https://doi.org/10.1016/j.jtcvs.2006.05.014Testhttps://api.elsevier.com/content/article/PII:S0022522306008865?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S0022522306008865?httpAccept=text/plainTest
الإتاحة: https://doi.org/10.1016/j.athoracsur.2007.10.095Testhttps://api.elsevier.com/content/article/PII:S0003497507022503?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S0003497507022503?httpAccept=text/plainTest
الإتاحة: https://doi.org/10.1016/j.athoracsur.2005.03.088Testhttps://api.elsevier.com/content/article/PII:S0003497505005485?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S0003497505005485?httpAccept=text/plainTest