Vasopressin mediates the response of the combined dexamethasone/CRH test in hyper-anxious rats: implications for pathogenesis of affective disorders - Keck, ME; Wigger, A; Welt, T; Müller, MB; Gesing, A; Reul, JMHM; Holsboer, F; Landgraf, R; Neumann, ID (Neuropsychopharmacology, 2002)