Okpataku, C. I., Kwanashie, H. O., Ejiofor, J. I., & Olisah, V. O. (2014). Prevalence and socio-demographic risk factors associated with psychoactive substance use in psychiatric out-patients of a tertiary hospital in Nigeria. Niger Med J.

Okpataku, Christopher Izehinosen, Helen Ochuko Kwanashie, Janet Ifeakanwa Ejiofor, und Victor Obiajulu Olisah. "Prevalence and Socio-demographic Risk Factors Associated With Psychoactive Substance Use in Psychiatric Out-patients of a Tertiary Hospital in Nigeria." Niger Med J 2014.

Okpataku, Christopher Izehinosen, Helen Ochuko Kwanashie, Janet Ifeakanwa Ejiofor, und Victor Obiajulu Olisah. "Prevalence and Socio-demographic Risk Factors Associated With Psychoactive Substance Use in Psychiatric Out-patients of a Tertiary Hospital in Nigeria." Niger Med J 2014.