[1] Xinxiang Med Univ, Henan Mental Hosp, Affiliated Hosp 2, Dept Geriatr Psychiat, Xinxiang, Peoples R China
[2] Xinxiang Med Univ, Henan Mental Hosp, Affiliated Hosp 2, Dept Psychiat, Xinxiang, Peoples R China
[3] Xinxiang Med Univ, Henan Mental Hosp, Affiliated Hosp 2, Dept Geriatr Psychiat, 207 Qianjin Rd, Xinxiang 453002, Henan, Peoples R China