Corresponding Author

Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

Correspondence author address:

Tao-Chun Peng, M.D, Department of Family and Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Number 325, Section 2, Chang-gong Rd, Nei-Hu District, 114, Taipei, Taiwan, Tel: +886-2-87923311 ext. 16556, Fax: +886-2-87927057

E-mail: koigojaff@mail.ndmctsgh.edu.tw