Lucchi Marco, Viti Andrea, Ricciardi Roberta, Murri Luigi, Mussi Alfredo
Division of Thoracic Surgery, Department of Cardiac and Thoracic Surgery, University of Pisa, Pisa, Italy.
J Thorac Cardiovasc Surg. 2007 Nov;134(5):1376-8. doi: 10.1016/j.jtcvs.2007.07.040.