Hafeez, Rabia, and Inayatullah Memon. “MRI Grading of Lumbar Spine Degenerative Disc Disease Using a Modified Pfirrmann Grading System”. Journal of Liaquat University of Medical & Health Sciences 21, no. 04 (January 3, 2023): 281–284. Accessed May 18, 2024. http://ojs.lumhs.edu.pk/index.php/jlumhs/article/view/882.