magnetic resonance imaging of lumbar spine: 'bone within a bone' appearance of L3 vertebra
magnetic resonance imaging of lumbar spine: 'bone within a bone' appearance of l3 vertebra
magnetic resonance imaging of lumbar spine: 'bone within a bone' appearance of L3 vertebra (procedure)
magnetic resonance imaging of lumbar spine: 'bone within a bone' appearance of l3 vertebra (procedure)