Adapted from Kaiser, Thomas, et al. “Normal Values for Aortic Diameters in Children and Adolescents--Assessment in Vivo by Contrast-Enhanced CMR-Angiography.” Journal of Cardiovascular Magnetic Resonance: Official Journal of the Society for Cardiovascular Magnetic Resonance, vol. 10, Dec. 2008, p. 56. PubMed, doi:10.1186/1532-429X-10-56.