5Abdullah AF,Ditto EW III,Byrd EB. Extreme-lateral lumbar disc herniations. Clinical syndrome and special problems of diagnosis.[J]. J Neurosurg, 1974,41:229-234.
6Jang JS,An SH.Lee SH.Transforaminal percutaneous endoscopic diseectomy in the treatment of foraminal and extraforaminal lumbar disc hemiations. [J] J Spinal Disord Tech,2006,19(5): 338-43.