Linkage of three polymorphisms on chromosome 20p12 to ossification of the posterior longitudinal ligament of spine and its severity in Han Chinese patients.
Association of bone morphogenetic protein-2 gene polymorphisms with susceptibility to ossification of the posterior longitudinal ligament of the spine and its severity in Chinese patients.
Wang H et al.
European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2008