RETRACTED: Electroconvulsive therapy and aerobic exercise training increased BDNF and ameliorated depressive symptoms in patients suffering from treatment-resistant major depressive disorder

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of the editors as the reported results are based on a confused data set according to a recent notification by the authors. Instead of the original data of the actual study, data from a previous publication of the same group (Haghighi et al., 2013) have been erroneously analyzed.