HAFEEZ, Rabia; MEMON, Inayatullah. MRI Grading of Lumbar Spine Degenerative Disc Disease using a Modified Pfirrmann Grading System. Journal of Liaquat University of Medical & Health Sciences, [S. l.], v. 21, n. 04, p. 281–284, 2023. Disponível em: http://ojs.lumhs.edu.pk/index.php/jlumhs/article/view/882. Acesso em: 5 dec. 2025.