[1] Tungs Taichung Metroharbor Hosp, Anesthesiol, Taichung, Taiwan
[2] Univ Kang Ning, Natl Def Med Ctr, Pharmacol, Taipei, Taiwan
[3] Univ Kang Ning, Natl Def Med Ctr, Grad Inst Med Sci, Taipei, Taiwan
[4] Univ Kang Ning, Dept Nursing, Taipei, Taiwan
[5] Univ Kang Ning, Dept Hlth Management Elderly Soc, Taipei, Taiwan