Caretta Q, Voci P, Bilotta F, Mercanti C, Marino B
Department of Cardiac Surgery, University of Florence, and the Institute of Cardiac and Great Vessels Surgery, La Sapienza University of Rome, Italy.
J Cardiothorac Vasc Anesth. 1994 Apr;8(2):206-8. doi: 10.1016/1053-0770(94)90064-7.