[1] Guangdong Med Univ, Sch Nursing, 1 Xincheng Rd,Songshan Lake Sci & Technol Ind Pk, Dongguan 523808, Guangdong, Peoples R China
[2] Heze Med Coll, Sch Nursing, Heze 274000, Shandong, Peoples R China
[3] Sun Yat Sen Univ, Affiliated Hosp 1, Eastern Hosp, Dept Upper Extrem Orthoped, Guangzhou 510700, Guangdong, Peoples R China
[4] Longgang Cent Dist Hosp, Dept Intens Care Unit, Shenzhen 518116, Guangdong, Peoples R China