Diagnosis and Surgical Management of Cervical Ossification of the Posterior Longitudinal Ligament
Spine J 2:436-439, Epstein,N., 2002
Diagnosis and Treatment of Ossification of the Posterior Longitudinal Ligament of the Spine:8 Cases and Lit Review
Am J Med 92:296-306, Trojan,D.A.,et al, 1992