1. Hashimoto J, Okada K, Hayashi H . Cervical spondylotic myelopathy in the aged patients. Reasoned anterior procedure. J West Jap Research Society for Spine 1986; 12: 117–126.
2. Sasaki K et al. Surgical treatment for cervical myelopathy above sixty years old. J West Jap Research Society for Spine 1986; 12: 131–135.
3. Machida H et al. A study of surgical treatment of cervical myelopathy and its complications on old aged patient. J West Jap Research Society for Spine 1986; 12: 136–139.
4. Kurio S et al. Results of surgical treatment for cervical spondylotic myelopathy in old age. J West Jap Research Society for Spine 1986; 12: 148–153.
5. Nagata K et al. Clinical value of magnetic resonance imaging for cervical myelopathy. Spine 1990; 15: 1088–1096.