1. Mithal A, Trivedi N, Gupta SK, Kumar S, Gupta RK (1993) Radiological spectrum of endemic fluorosis: relationship with calcium intake. Skeletal Radiol 22: 257?261
2. Resnick D (1988) Calcification and ossification of the posterior spinal ligaments and tissues. In: Resnick D, Niwayama G (eds) Diagnosis of bone and joint disorders. Saunders, Philadelphia, pp 1603?1615
3. Deshpande RP, Dinakar I, Reddy MS (1976) Calcified posterior longitudinal ligament and myelopathy. Indian J Orthop 10: 78?82
4. Rao BS, Taraknath VR, Sista VN (1992) Ossification of the posterior longitudinal ligament and fluorosis. J Bone Joint Surg [Br] 74: 469?470
5. Yamashita Y, Takahashi M, Matsuno Y, Sakamoto Y, Yoshizumi K, Oguni T, Kojima R (1990) Spinal cord compression due to ossification of ligaments: MR imaging. Radiology 175: 843?848