[Zhang, Jingping; Li, Juan; Yin, Yizhen] Cent South Univ, Xiangya Nursing Sch, Changsha 410013, Hunan, Peoples R China.
[Lyu, Mengmeng] Natl Univ Singapore, Alice Lee Ctr Nursing Studies, Yong Loo Lin Sch Med, Singapore, Singapore.
[Zuo, Man] Guangdong Prov Peoples Hosp, Dept Resp Med, Heyuan Branch, Heyuan, Peoples R China.
[Yao, Shuyu] Sun Yat Sen Univ, Zhongshan Ophthalm Ctr, State Key Lab Ophthalmol, Guangzhou, Peoples R China.
[Li, Hui] Sichuan Univ, West China Hosp, Dept Orthoped, West China Sch Nursing, Chengdu, Peoples R China.