WITHDRAWN: Association analysis between the early change of serum brain-derived neurotrophic factor (sBDNF) and final change of depression severity during antidepressant treatment: A pilot study.

This article has been withdrawn at the request of the Editor-in-Chief. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.