T. Abe, T. Ito, M. Sunada, T. Yoshizumi, A. Kawamura, and K. Yamana, “Balloon Occlusion of the Ascending Aorta without Hypothermic Circulatory Arrest in Valve Surgery for Patients with a Porcelain Aorta”, HSF, vol. 13, no. 4, pp. E251-E253, Aug. 2010.