_:vb50937911 . _:vb50937911 . _:vb50937911 . _:vb50937911 "A trachea carcinoma that is characterized by the presence of squamous cells, mucus-secreting cells, and intermediate cells."^^ . _:vb50937911 . _:vb50937911 "url:http://en.wikipedia.org/wiki/Mucoepidermoid_carcinoma"^^ . _:vb50937911 .