_:vb50948117 . _:vb50948117 . _:vb50948117 . _:vb50948117 "A squamous cell carcinoma that is located_in the trachea."^^ . _:vb50948117 . _:vb50948117 "url:https://www.ncbi.nlm.nih.gov/pubmed/26066883"^^ . _:vb50948117 .