[1] Miyazaki Univ, Org Promot Tenure Track, Kiyotake, Miyazaki 8891692, Japan
[2] Chiba Univ, Grad Sch Nursing, Div Psychiat & Mental Hlth Nursing, Chiba, Chiba 2608672, Japan
[3] Chiba Univ Hosp, Inpatient Psychiat Unit, Chuo Ku, Chiba, Chiba 2608677, Japan
[4] Miyazaki Univ, Grad Sch Nursing, Dept Psychiat & Mental Hlth Nursing, Kiyotake, Miyazaki 8891692, Japan
[5] Chiba Univ, Grad Sch Med, Dept Cognit Behav Physiol, Chuo Ku, Chiba, Chiba 2608670, Japan
[6] Kagawa Prefectural Univ Hlth Sci, Fac Hlth Sci, Dept Nursing, Takamatsu, Kagawa 7610123, Japan
[7] Univ Tsukuba, Grad Sch Comprehens Human Sci, Dept Mental Hlth & Psychiat Nursing, Tsukuba, Ibaraki 3058577, Japan