RETRACTED: A novel modified electrode as GC/PPy-AuNPs-rGO/l-Cys/Ag@MUA nanostructure configuration for determination of CCP and CRP antibodies in human blood serum samples

This article has been retracted at the request of the Editor-in-Chief and the Corresponding Author, Arash Babakhanian. This paper has been withdrawn as a number of errors have subsequently been identified. This is acknowledged by the corresponding author. The authors and the Publisher would like to apologise for any inconvenience caused.