OICC Press Progress in Biomaterials 2194-0517 12 2 (June 2023) 2023 03 02 Correction to: Sustained release of valproic acid loaded on chitosan nanoparticles within hybrid of alginate/chitosan hydrogel with/without stem cells in regeneration of spinal cord injury 10.1007/s40204-023-00218-w EN Mohammad Amin Jafarimanesh Department of Biomedical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, IR Jafar Ai Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417743361, IR Shahrokh Shojaei Department of Biomedical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, IR Central Tehran Branch, Stem Cells Research Center, Tissue Engineering and Regenerative Medicine Institute, Islamic Azad University, Tehran, IR Hossein Ali Khonakdar Department of Processing, Iran Polymer and Petrochemical Institute, Tehran, IR Reactive Processing, Leibniz Institute of Polymer Research Dresden, Dresden, DE Goldis Darbemamieh Department of Biomedical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, IR Sadegh Shirian Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord, IR Shiraz Molecular Pathology Research Center, Dr Daneshbod Path Lab, Shiraz, IR Shefa Neurosciences Research Center, Khatam-Alanbia Hospital, Tehran, IR Journal Article 2023 03 02