1. Williams AL, Haughton VM, Syvertsen A (1982) Computed tomography in the diagnosis of herniated nucleus pulposus. Radiology 135:95–99
2. Genant KH (1982) Computed tomography of the lumbar spine: technical considerations. In: Genant HK, Chafetz N, Helms CA (eds) Computed tomography of the lumbar spine. University of California, San Francisco, pp 23–52
3. Haughton VM, Williams AL (1982) Computed tomography of the spine. Mosby, St Louis, pp 3–22
4. Fries JW, Abodeely DA, Vijungco JG, Yeager VL, Gaffey WR (1982) Computed tomography of herniated and extruded nucleus pulposus. J Comput Assist Tomogr 6:874–887
5. Braun IF, Lin JP, Benjamin MV, Kricheff IJ (1981) The CT appearance of the lumbar spine in the asymptomatic patient after disc surgery. Presented at the 67th Scientific Assembly and Annual Meeting of the Radiological Society of North America, Chicago, IL, November 15–20