Nkporbu KA, Otti I, Ugbomah L. Pattern and Socio-Demographic Correlates of Substance Use Among Patients Attending the Drug Unit of the University of Port Harcourt Teaching Hospital: https://doi.org/10.60787/NMJ-64-1-241. Niger Med J [Internet]. 2023 May 5 [cited 2026 Apr. 29];64(1):137. Available from: https://nigerianmedjournal.org/index.php/nmj/article/view/241