Saidah Syamsuddin, “Catechol-O-methyltransferase (COMT) Val158Met polymorphism in schizophrenia patients: response to antipsychotic treatment and cognitive function”, J Popl Ther Clin Pharmacol, vol. 30, no. 16, pp. 49–58, Jun. 2023, doi: 10.47750/jptcp.2023.30.16.006.