postoperative magnetic resonance imaging of lumbar spine: mass of L3-L4 intervertebral disc space
postoperative magnetic resonance imaging of lumbar spine: mass of l3-l4 intervertebral disc space
postoperative magnetic resonance imaging of lumbar spine: mass of L3-L4 intervertebral disc space
postoperative magnetic resonance imaging of lumbar spine: mass of l3-l4 intervertebral disc space