[1] Guangzhou Med Univ, Dept Nursing, Affiliated Hosp 3, Guangzhou 510150, Guangdong, Peoples R China
[2] Guangzhou Med Univ, Affiliated Hosp 3, Dept Nursing, Guangzhou 510150, Guangdong, Peoples R China
[3] Guangzhou Med Univ, Affiliated Hosp 3, Dept Crit Care Med, Guangzhou 510150, Guangdong, Peoples R China
[4] Hunan Canc Hosp, Dept Lung Canc & Gastroenterol, Changsha 410013, Hunan, Peoples R China
[5] Guangzhou Med Univ, Affiliated Hosp 3, Dept Neurol, 63 Duobao Rd, Guangzhou 510150, Guangdong, Peoples R China