Erratum
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The manuscript “Demographic and histopathological patterns of neuro-epithelial brain tumors in Eastern Province of Saudi Arabia.” Neurosciences (Riyadh) 2018 Jan;23(1):18-22. DOI: [10.17712/nsj.2018.1.20160543](http://nsj.org.sa/lookup/doi/https://doi.org/10.17712/nsj.2018.1.20160543). In the authors’ name Mohammed A. Hassen should be written as Mohammed Hasen

The manuscript “Percutaneous hydrodiscectomy surgery effectiveness in chronic back pain (hydrodiscectomy in chronic back pain).” Neurosciences Journal July 2023; 28 (3): 159-164; DOI: [https://doi.org/10.17712/nsj.2023.3.20220113](http://nsj.org.sa/lookup/doi/https://doi.org/10.17712/nsj.2023.3.20220113)

The affiliation of the coauthor Dr. Mohammed A. Khashab should be as follows: Department of Orthopedic Surgery, King Saud bin AbdualAziz University for Health Sciences, College of Medicine, King Abdulaziz Medical City, Jeddah, National Guard Health Affairs, Kingdom of Saudi Arabia

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