Sebastian Koch, Antonio J Bustillo, Bertha Campo, Nelly Campo, Iszet Campo Bustillo, Mark S McClendon, Michael Katsnelson, and Jose G Romano. “Prevalence of Vertebral Artery Origin Stenosis and Occlusion in Outpatient Extracranial Ultrasonography”. Journal of Vascular and Interventional Neurology 7, no. 3 (November 12, 2023). Accessed October 1, 2024. https://ojs.jvin.org/index.php/jvin/article/view/385.