1. From the Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (Q.Z., Y.Z., C.W., S.Z., A.W., N.L., L.B., J.W., Q.J., X.Z.); Department of Cell Transplantation, the General Hospital of Chinese People’s Armed Police Forces, Beijing, China (Q.Z.); Channing Laboratory, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA (X.G.); Department of Nutrition, Harvard University School of Public Health, Boston, MA (X.G.);...