_:vb50953305 . _:vb50953305 "A tracheal cancer that effects the airway that leads from the larynx to the bronchi."^^ . _:vb50953305 . _:vb50953305 . _:vb50953305 . _:vb50953305 "url:http://nci.nih.gov/dictionary/?CdrID=46623"^^ . _:vb50953305 .