title: Carcinoembryonic antigen assay in pleural effusions.
mesh_terms: D002272:Carcinoembryonic Antigen / Q000032:analysis*; D006801:Humans; D009369:Neoplasms / Q000175:diagnosis*; D010996:Pleural Effusion / Q000175:diagnosis*
chemical_list: D002272:Carcinoembryonic Antigen