Differential diagnosis of depressive illness versus intense normal sadness: how significant is the ‘clinical significance criterion’ for major depression?

Abstract
(2010). Differential diagnosis of depressive illness versus intense normal sadness: how significant is the ‘clinical significance criterion’ for major depression? Expert Review of Neurotherapeutics: Vol. 10, No. 7, pp. 1015-1018. doi: 10.1586/ern.10.67