Following this puts new work involving it at the top of your briefing, with a note saying why it is there. Links are taken from the source record, never inferred.
A scoping review mapping the landscape of non-pharmacological interventions without quality assessment, effect synthesis, or meta-analysis; descriptive and gap-identifying rather than outcome-determining.
This is a commentary piece proposing a molecular mechanism (GABAB1R expression in dopamine neurons) linking DBS to antidepressant effects, without original clinical or experimental data of its own.