Liu, J. et al. 2026. Bidirectional Mendelian Randomisation Analysis of Gastric Cancer and Depression: Evidence for the Causal Effect of Cancer on Depression. Actas Españolas de Psiquiatría. 54, 1 (Feb. 2026), 97–106. DOI:https://doi.org/10.62641/aep.v54i1.2097.