This article has been found to be a duplicate publication, which has appeared in both EJVES Extra1 and Yonsei Medical Journal.2 This article is now retracted at the request of the Editor-in-Chief, European Journal of Vascular and Endovascular Surgery, as this article first appeared in EJVES Extra (the electronic companion journal to European Journal of Vascular and Endovascular Surgery).Reason: The article was originally published in the EJVES Extra in 2002, EJVES Extra 2002;3(2): 36-8, under a same title. This is a violation of the Yonsei Medical Journal policy against duplicate publication, clearly stated in the journal's "Information for Contributors". The corresponding author, Dr. Canbaz knew that the article had been previously published in the EJVES Extra. In accordance with journal policy, Dr. Canbaz has been barred from publishing in Yonsei Medical Journal for three years.The journal's policy in this respect is clear: the Yonsei Medical Journal considers all manuscripts on the strict condition that they have been submitted only to the Yonsei Medical Journal, that they have not been published already, nor are they under consideration for publication or in press elsewhere.