[1] Sichuan Acad Med Sci & Sichuan Prov Peoples Hosp, Dept PICC, Chengdu, Peoples R China
[2] Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, Dept Resp & Crit Illness, Chengdu, Peoples R China
[3] Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, Dept Nursing, Chengdu, Peoples R China
[4] Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, Sichuan Prov Key Lab Genet Dis, Chengdu, Peoples R China