1 From the Department of Neurology First Affiliated Hospital (Q.W., S.D.), Kunming Medical University, Kunming, P.R. China; Yale School of Medicine (C.W.Z.), New Haven; and Department of Internal Medicine (C.W.Z.), St. Vincent's Medical Center, Bridgeport, CT.
2 From the Department of Neurology First Affiliated Hospital (Q.W., S.D.), Kunming Medical University, Kunming, P.R. China; Yale School of Medicine (C.W.Z.), New Haven; and Department of Internal Medicine (C.W.Z.), St. Vincent's Medical Center, Bridgeport, CT. dssj17@126.com.