1 Department of Epidemiology, School of Public Health, Suzhou Medical College of Soochow University, China. (P.Y., M.S., Z.Z., L.S., X.C., Y.H., Yi Liu, Y.Z.).
2 Department of Neurology, Minhang Hospital, Fudan University, Shanghai, China (Yang Liu, X.M., X.W., M.C., H.N., J.Z.).
3 School of Nursing, Suzhou Medical College of Soochow University, China. (D.G.).