[1] Weifang Med Univ, Sch Publ Hlth, Weifang, Peoples R China
[2] Jining Med Univ, Sch Clin Med, Jining, Peoples R China
[3] Weifang Med Univ, Sch Nursing, Weifang, Peoples R China
[4] Shandong First Med Univ & Shandong Acad Med Sci, Sch Nursing, Jinan, Peoples R China
[5] Shandong Mental Hlth Ctr, Dept Infect Management, Jinan, Peoples R China
[6] Shandong First Med Univ, Shandong Prov Hosp, Psychol Dept, Affiliated Prov Hosp, Jinan, Peoples R China
[7] Shandong Mental Hlth Ctr, Jinan, Peoples R China