Cosgun, Z., Dagistan, Y., Dagistan, E., Kalfaoglu, M. E. and Cicek, C. (2023) “The Relationship between the Severity of Lumbar Spinal Stenosis and Levels of Vitamin D and Parathyroid Hormone”, National Journal of Health Sciences, 8(3), pp. 102-107. Available at: https://ojs.njhsciences.com/index.php/njhs/article/view/449 (Accessed: 20May2024).