Effect of antidepressant switching between nortriptyline and escitalopram after a failed first antidepressant treatment among patients with major depressive disorder

Ole Köhler-Forsberg, Erik Roj Larsen, Henriette N. Buttenschon, Marcella Rietschel, Joanna Hauser, Daniel Souery, Wolfgang Maier, Anne Farmer, Peter McGuffin, Katherine J. Aitchison, Rudolf Uher, Ole Mors