magnetic resonance imaging of lumbar spine: free fragment of L4-L5 intervertebral disc space
magnetic resonance imaging of lumbar spine: free fragment of l4-l5 intervertebral disc space
magnetic resonance imaging of lumbar spine: free fragment of L4-L5 intervertebral disc space (procedure)
magnetic resonance imaging of lumbar spine: free fragment of l4-l5 intervertebral disc space (procedure)