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Ayegnon KG, Aupart M, Bourguignon T, Mirza A, May MA, Marchand M.Ayegnon KG, et al. Among authors: marchand m.Asian Cardiovasc Thorac Ann. 2011 Feb;19(1):14-9. doi: 10.1177/0218492310395422.Asian Cardiovasc Thorac Ann. 2011.Retraction in: Asian Cardiovasc Thorac Ann. 2011 Jun;19(3-4):292. doi: 10.1177/0218492311412268PMID: 21357312Retracted.