Steroid Injections for Patients With Low Back Pain.
D002908:Chronic Disease; D006801:Humans; D007268:Injections, Epidural; D017116:Low Back Pain / Q000000981:diagnostic imaging* / Q000188:drug therapy*; D008279:Magnetic Resonance Imaging; D013256:Steroids / Q000008:administration & dosage*
D013256:Steroids