[1] Guangzhou Univ Chinese Med, Clin Med Coll 8, Guangzhou 510006, Peoples R China
[2] Hong Kong Polytech Univ, Sch Nursing, Hong Kong 100872, Peoples R China
[3] Foshan Hosp Tradit Chinese Med, Foshan 528000, Peoples R China
[4] Shanwei Inst Technol, Shanwei 516600, Guangdong, Peoples R China
[5] Peoples Hosp Foshan Chancheng Dist, Foshan 510006, Peoples R China
[6] Guangdong Hosp Integrated Tradit Chinese & Western, Foshan 528200, Peoples R China
[7] Guangzhou Med Univ, Sch Nursing, 1 Xinzao Rd, Guangzhou 511436, Peoples R China