[1] Natl Yang Ming Chiao Tung Univ, Cheng Hsin Gen Hosp, Sch Med, Div Infect Dis, Taipei, Taiwan
[2] SUNY Coll New Paltz, Dept Polit Sci, New Paltz, NY USA
[3] China Med Univ, Dept Lab Med, China Med Univ Hosp, Sch Med, Taichung, Taiwan
[4] China Med Univ, Dept Internal Med, China Med Univ Hosp, Sch Med, Taichung, Taiwan
[5] China Med Univ, Sch Med, PhD Program Aging, Taichung, Taiwan
[6] Natl Taiwan Univ, Dept Lab Med, Natl Taiwan Univ Hosp, Coll Med, Taipei, Taiwan
[7] Natl Taiwan Univ, Dept Internal Med, Natl Taiwan Univ Hosp, Coll Med, Taipei, Taiwan