Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Koichi Oba and Kosaku Higashino and Natsuo Yasui and Nori Hirohashi and Koichi Sairyo and Toshinori Sakai and Shinsuke Katoh,Lumbar radiculopathy caused by extradural rheumatoid nodules,Journal of Neurosurgery: Spine,1547-5654,Journal of Neurosurgery Publishing Group (JNSPG),2007-09-01,7,,352-356,https://cir.nii.ac.jp/crid/1873398392365152512,https://doi.org/10.3171/spi-07/09/352