Cognitive deficits in treatment-resistant depression: protocol for a systematic review and meta-analysis.
Ronold Eivind Haga, Jensen Daniel, Thorsen Anders Lillevik L, +7 more·BMJ open
INTRODUCTION: Major depressive disorder (MDD) is a major global healthcare challenge. This is, in part, due to the lack of treatment response and chronic course of MDD. Such a course of illness is often termed treatment-resistant depression (TRD) and is seen in over one-third of people with MDD. Reasons for treatment r…