[1] Shandong Univ, Hosp 2, Cheeloo Coll Med, Dept Geriatr, Jinan, Peoples R China
[2] Shandong Univ, Qilu Hosp, Cheeloo Coll Med, Dept Nursing, Jinan, Peoples R China
[3] Shandong Univ, Cheeloo Coll Med, Sch Nursing & Rehabil, Jinan, Peoples R China
[4] Shandong Univ, Cheeloo Coll Med, Nursing Theory & Practice Innovat Res Ctr, Jinan, Peoples R China
[5] Shandong Univ, Cheeloo Coll Med, Sch Basic Med Sci, Dept Med Psychol & Eth, Jinan, Peoples R China
[6] Shandong Univ, Hosp 2, Cheeloo Coll Med, Dept Neurol, Jinan, Peoples R China
[7] Jinan Civil Affairs Bur, Dept Pens Serv, Jinan, Peoples R China
[8] Jinan Pens Serv Dev Promot Assoc, Dept Secretariat, Jinan, Peoples R China