1. Sichuan Nursing Vocational College, 173 Longdu South Road, Longquanyi District, Chengdu, Sichuan 610100, China
2. School of Pharmacy, Chengdu Medical College, 783 Xindu Avenue, Xindu District, Chengdu, Sichuan 610500, China
3. The Third People’s Hospital of Chengdu, No. 82 Qinglong Street, Qingyang District, Chengdu, Sichuan 610014, China
4. West China Dental Hospital of Sichuan University, No. 14 Renmin South Road, Wuhou District, Chengdu, Sichuan 610000, China
5. College of Nursing, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Road, Wenjiang District, Chengdu, Sichuan 611137, China