This definition appears rarely
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Samples in periodicals archive:
Brief depressive episodes (BDEs) cause psychosocial impairment and increased risk of suicide, worsening the outcome and long-term course of affective disorders.
1. Nervenarzt. 2001 Mar;72(3):169-80. [Recurrent brief depressive episodes. Epidemiology, clinical aspects, diagnosis and therapy]. [Article in German]
The present study evaluates the BSD frequency among inpatients with major depressive disorder; Bipolar spectrum disorder, brief depressive episode...