Retraction Note to: Effect of N-acetyl cysteine (NAC) supplementation on positive and negative syndrome scale in schizophrenia: a systematic review and meta-analysis of randomised controlled trials (European Journal of Clinical Pharmacology, (2019), 75, 3, (289-301), 10.1007/s00228-018-2595-1)

Abstract

The authors have retracted this article 1 because there are fundamental errors in the data presented that undermine the conclusions drawn. All authors agree with this retraction. The authors are re-analysing their data and intend to submit a new manuscript for peer review in due course. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature