Efficacy of the novel antidepressant agomelatine on the circadian rest-activity cycle and depressive and anxiety symptoms in patients with major depressive disorder: a randomized,... gan Kasper, S, Hajak, G, Wulff, K, Hoogendijk, W, Montejo, A, Smeraldi, E, Rybakowski, J, Quera-Salva, M, Wirz-Justice, A, Picarel-Blanchot, F, Baylé, F