Efstratios N Koletsis , Christine Kalogeropoulou , Eleni Prodromaki , George C Kagadis , Konstantinos Katsanos , Konstantinos Spiropoulos , Theodore Petsas , George C Nikiforidis and Dimitris Dougenis
Journal of Cardiothoracic Surgery 2007, 2:18doi:10.1186/1749-8090-2-18