[Gao, Xudong] Wuhan Polytech Univ, Coll Med & Hlth Sci, Dept Nursing, Wuhan, Peoples R China.
[Ding, Feng] Nanjing Univ, Sch Informat Management, Dept Informat Management Sci, Nanjing, Peoples R China.
[Kong, Chan; Gao, Xudong; Wang, Mei] Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Nursing Dept, 1095 Jiefang Ave, Wuhan 430030, Peoples R China.
[Kong, Chan; Wang, Mei] Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Geriatr, Wuhan, Peoples R China.