CANNIÈRE, D. DE; DINDAR, M.; STEFANIDIS, C.; JEGADEN, O.; JANSENS, J.-L. Early Experience with a New Aortic Clamping System Designed for Port Access Cardiac Surgery: The PortaClamp. The Heart Surgery Forum, v. 7, n. 3, p. E240-E244, 4 Jan. 2005.