Increased vertebral artery tortuosity index is associated with adverse outcomes in children and young adults with connective tissue disorders.
Morris SA, Orbach DB, Geva T, Singh MN, Gauvreau K, Lacro RV. Increased vertebral artery tortuosity index is associated with adverse outcomes in children and young adults with connective tissue disorders. Circulation. 2011 Jul 26; 124(4):388-96.