Is melancholia a distinct syndrome? : Recurrence, chronicity, and severity give evidence in the 50 year follow-up of the Lundby Study
INTRODUCTION: Whether melancholia is a distinct syndrome has long been debated. One aspect of a valid syndrome is whether it allows for determination of a prognosis. The aim of this study is to investigate the course of melancholic depression versus non-melancholic depression with a focus on: (i) time to and probability of recovery from the first depressive episode, (ii) time to and risk of the fi