The Prevalence and Abnormalities of Intervertebral Discs (ivd) at Various Levels in Lumbosacral Spine Magnetic Resonance Imaging (mri): Intervertebral Discs (ivd) at Various Levels in Lumbosacral Spine Magnetic Resonance Imaging (mri). Med J South Punjab 2023, 4 (01), 21-35. https://doi.org/10.61581/MJSP.VOL04/01/03.