“…In contrast, the mental/psychological care services have been noted as an area of neglect in OR (Bradley et al, 2017 ). For instance, existing reviews explore the application of specific OR methodologies, such as simulation (Langellier et al, 2019 ; Long & Meadows, 2018 ; Noorain et al, 2019 ), and Data Envelopment Analysis (García-Alonso et al, 2019 ), on mental healthcare services. In contrast, a comprehensive review of the application of optimisation methodologies to mental healthcare in the OR literature is lacking.…”