Mary G George1, Xingquan Zhao2. 1. From the Division for Heart Disease and Stroke Prevention (M.G.G.), Centers for Disease Control and Prevention, Atlanta, GA; Department of Neurology (X.Z.), Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases (X.Z.); and Center of Stroke (X.Z.), Beijing Institute for Brain Disorders, P.R. China. coq5@cdc.gov. 2. From the Division for Heart Disease and Stroke Prevention (M.G.G.), Centers for Disease Control and Prevention, Atlanta, GA; Department of Neurology (X.Z.), Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases (X.Z.); and Center of Stroke (X.Z.), Beijing Institute for Brain Disorders, P.R. China.