Muhamad Jamil, Nur Khadijah, Asma Abdullah Nurul, Imran Ahmad, Ismail Samhani, and Ruzilawati Abu Bakar. 2021. “D4 and D5 Dopamine Receptor MRNA Expression in Human Peripheral Blood Lymphocytes Among Cooccurring Opioid and Amphetamine-Type Stimulants Use Disorder Undergoing Methadone Maintenance Therapy”. Bangladesh Journal of Medical Science 20 (3):563-68. https://doi.org/10.3329/bjms.v20i3.52799.