Optic Nerve and its Arterial-Venous Vascularization: An Ultrasonologic Study in Multiple Sclerosis Patients and Healthy Controls. Carraro N, Servillo G, Sarra V M, Bignamini A, Pizzolato G, Zorzon M J Neuroimaging. 2012 Dec 28. PMID: 23279290. Abstract CommentRecommendBookmarkWatch