1. A case report: autopsy of syndrome of compression of spinal cord owing to ossification within spinal canal of cervical spines;Tsukimoto, H.;Arch Jap Chir
2. Symptomatic ossification of the posterior longitudinal ligament of the cervical spine;Nakanishi, T.; Mannen, T.; Toyokura, Y.; Sakaguchi, R.; Tsuyama, N.;Neurology (Minneap),1974
3. Posterior paraveretebral ossification causing cervical myelopathy;Onji, Y.; Akiyama, H.; Shimomura, Y.; Ono, K.; Hukuda, S.; Mizuno, S.;J Bone Joint Surg,1967
4. Posterior longitudinal ligament calcification of the cervical spine;Hanna, M.; Watt, I.;Br J Radiology,1979
5. Computed tomography of posterior longitudinal ligament ossification: its appearance and diagnostic value with special reference to thoracic lesions;Murakami, J.; Russell, W.J.; Hayabuchi, N.; Kimura, S.;J Comput Assist Tomogr,1982