Аннотация:Mr. Sorenson is an undergraduate in the Lanzino Lab, and Dr. Lanzino is Professor, Departments of Radiology and Neurosurgery, Mayo Clinic, 200 First St SW, Rochester, MN 55905; E-mail: [email protected]. All authors and staff in a position to control the content of this CME activity, and their spouses/life partners (if any), have disclosed that they have no financial relationships with, or financial interests in, any commercial organizations related to this CME activity. Category: Cerebrovascular Lippincott Continuing Medical Education Institute, Inc. is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. Lippincott Continuing Medical Education Institute, Inc. designates this enduring material for a maximum of 1.5 AMA PRA Category 1 Credits™. Physicians should only claim credit commensurate with the extent of their participation in the activity. To earn CME credit, you must read the CME article and complete the quiz and evaluation on the enclosed form, answering at least 70% of the quiz questions correctly. This activity expires on November 14, 2016.