x-ray of thoracic spine: bony ankylosis of posterior elements at T3-T4
x-ray of thoracic spine: bony ankylosis of posterior elements at t3-t4
x-ray of thoracic spine: bony ankylosis of posterior elements at T3-T4 (procedure)
x-ray of thoracic spine: bony ankylosis of posterior elements at t3-t4 (procedure)