Retraction notice to "Investigations on 2-(4-Cyanophenylamino) acetic acid by FT-IR,FT-Raman, NMR and UV-Vis spectroscopy, DFT (NBO, HOMO-LUMO, MEP and Fukui function) and molecular docking studies" [Heliyon 6 (2020) e04976] - Retraction Notice | RetractBase