N. A. Y. Zakaria, N. H. Mohamad Zulkifli, P. L. J. Lokman Hadi, Oh Sook Yun Cassandra, Phoebe Lim Xin Jie, and Z. A. Majeed, “Perceived Social Support and Opioid Relapse Among Patients Receiving Methadone Maintenance Therapy (MMT) at a Public Hospital in Malaysia - a cross-sectional study”, Int J Med Stud, Aug. 2026.