TY - JOUR AU - Beckmann, Erik AU - Martens, Andreas AU - Krueger, Heike AU - Kaufeld, Tim AU - Haverich, Axel AU - Shrestha, Malakh PY - 2020 TI - Aortic valve sparing aortic root replacement (David procedure) via an upper hemisternotomy: Hannover experience JF - Journal of Visualized Surgery; Vol 7 (January 20, 2021): Journal of Visualized Surgery Y2 - 2020 KW - N2 - UR - https://jovs.amegroups.org/article/view/42387