[1] Chang Gung Univ, Dept Internal Med, Div Pulm & Crit Care Med, Kaohsiung Med Ctr,Chang Gung Mem Hosp,Coll Med, Kaohsiung, Taiwan
[2] Chang Gung Inst Technol, Dept Resp Care, Chiayi, Taiwan
[3] Chang Gung Univ, Dept Internal Med, Chang Gung Mem Hosp, Kaohsiung Med Ctr,Div Nephrol,Coll Med, Kaohsiung, Taiwan
[4] Chang Gung Univ, Dept Internal Med, Div Infect Dis, Kaohsiung Med Ctr,Chang Gung Mem Hosp,Coll Med, Kaohsiung, Taiwan