article_metadata: Lester J Layfield Lyska Emerson Julia R Crim Lor Randall
article_metadata: 10.4137/cpath.s582
article_metadata: Clin Med Pathol
article_metadata: 2008;1:55-9.
article_metadata: cytokeratin osteosarcoma squamous differentiation
article_metadata: CC BY
article_metadata: https://pubmed.ncbi.nlm.nih.gov/21876652/
article_metadata: PMC3160007
article_metadata: 21876652
article_metadata: Squamous differentiation and cytokeratin expression in an osteosarcoma: a case report and review of the literature
article_metadata: 2008