Siti Athirah Baharuddin, Farhani Samat, Nur Sakinah Yusof, Siti Zulaikha Samsudin, Norsharima Ahmad Jamil, Nur Athirah Rosli and Faridah Amin 2025. A 5-year Evaluation Study on Retention Status Among Patients Attending Methadone Replacement Therapy (MRT) In Kuala Selangor District, Malaysia. Malaysian Journal of Science and Advanced Technology. 5, 1 (Mar. 2025), 61–65. DOI:https://doi.org/10.56532/mjsat.v5i1.446.