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Chow A, Purkayastha S, Aziz O, Paraskeva P.Chow A, et al. Among authors: paraskeva p.Surg Endosc. 2010 Mar;24(3):709-14. doi: 10.1007/s00464-009-0655-4. Epub 2009 Aug 18.Surg Endosc. 2010.PMID: 19688389
Chow A, Purkayastha S, Aziz O, Pefanis D, Paraskeva P.Chow A, et al. Among authors: paraskeva p.Arch Surg. 2010 Dec;145(12):1187-91. doi: 10.1001/archsurg.2010.267.Arch Surg. 2010.PMID: 21173293
Paraskeva PA, Aziz O, Darzi A.Paraskeva PA, et al.Surg Clin North Am. 2005 Feb;85(1):49-60, viii. doi: 10.1016/j.suc.2004.09.001.Surg Clin North Am. 2005.PMID: 15619528Review.