1. From the Department of Medicine (D.C.Y.Y., A.X., N.M.S.W., M.H.Y., C.H.Y.F., K.S.L.L.) and the Research Centre of Heart, Brain, Hormone, and Healthy Aging (D.C.Y.Y., A.X., N.M.S.W., M.H.Y., K.S.L.L.), Li Ka Shing Faculty of Medicine, University of Hong Kong, and the Department of Radiology (C.W.S.C., M.T.C.), Queen Mary Hospital, HKSAR, China.