Chikashi Kawahara

Increasing Incidence of Degenerative Spinal Diseases in Japan during 25 Years: The Registration System of Spinal Surgery in Tohoku University Spine Society.

E. Itoi, H. Kanno, H. Ozawa, 2016, The Tohoku journal of experimental medicine.

Spinal dumbbell tumors: an analysis of a series of 118 cases.

H. Ozawa, S. Kokubun, T. Aizawa, 2007, Journal of neurosurgery. Spine.

Sagittal alignment changes after thoracic laminectomy in adults.

E. Itoi, H. Ozawa, S. Kokubun, 2008, Journal of neurosurgery. Spine.

New diagnostic support tool for patients with leg symptoms caused by lumbar spinal stenosis and lumbar intervertebral disc herniation: A self-administered, self-reported history questionnaire.

E. Itoi, Y. Shimada, S. Konno, 2016, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.