. Author manuscript; available in PMC: 2018 May 1.
Published in final edited form as: J Cardiovasc Comput Tomogr. 2017 Mar 16;11(3):203–207. doi: 10.1016/j.jcct.2017.03.001
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).