[1] Univ Nigeria Nsukka, Coll Med, Dept Psychol Med, Enugu 400001, Nigeria
[2] Univ Nigeria, Teaching Hosp, Dept Psychol Med, Ituku Ozalla 400001, Enugu, Nigeria
[3] Fed Med Ctr, Dept Psychol Med, Makurdi, Benue, Nigeria
[4] Hosp Psychiat, Clin Serv, Port Harcourt 500001, Rivers State, Nigeria
[5] Fed Neuropsychiat Hosp, Clin Serv, Enugu 400001, Enugu State, Nigeria
[6] Nnamdi Azikiwe Univ, Dept Mental Hlth, Awka 420001, Anambra, Nigeria