1. From the Departments of Community Healthcare and Geriatrics (L.H., X.W.C., H.S., A.I., H.J., X.L., M.K.), Orthopaedic Surgery (E.K.), and Cardiology (K.O.), Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Cardiology, Yanbian University Hospital, Yanji, China (X.W.C., X.L.); Department of Physiology and Pathophysiology, Yanbian University School of Medicine, Yanji, China (H.J.); Department of Dermatology, No. 3 People Hospital Affiliated to Shanghai Jiaotong University...