[1] Second Peoples Hosp Futian Dist Shenzhen, Dept Nursing, Shenzhen 518049, Guangdong, Peoples R China
[2] Shenzhen Shekou Peoples Hosp, Dept Nursing, 36 Ind 7th Rd, Shenzhen 518067, Guangdong, Peoples R China
[3] Shenzhen Peoples Hosp, Dept Tradit Chinese Med, Shenzhen 518000, Guangdong, Peoples R China
[4] Guangzhou Med Univ, Intens Care Unit, Affiliated Hosp 2, Guangzhou 510220, Guangdong, Peoples R China