Randall T. Higashida, MD University of California, San Francisco, Medical Center, San Francisco, CA
Correspondence: Randall T. Higashida, MD, Chief, Division of Interventional Neurovascular Radiology, University of Califormia, San Francisco, 505 Parnassus Avenue, Room L-352, San Francisco, CA 94143–0628; e-mail: randall.Higashida@radiology.ucsf.edu
