@misc{indiciae51e0e5f152da, title = {Diffuse intervertebral disc calcification.}, author = {L F Layfer and R Katz and H Golden}, year = {1977}, doi = {10.7326/0003-4819-87-2-252\_1}, url = {https://pubmed.ncbi.nlm.nih.gov/889217/}, note = {Source identifier: 889217} }