16. The Effective Steroid Dose of Caudal Epidural Injection With Unilateral Epidural Catheter Position in Patients With Symptomatic Herniated Nucleus Pulposus
16. The Effective Steroid Dose of Caudal Epidural Injection With Unilateral Epidural Catheter Position in Patients With Symptomatic Herniated Nucleus Pulposus