Task: Named Entity Recognition
Input (English):  RESULTS : Consistent with the known features of nasal polyps , CD4 + ( T helper / inducer ) , CD8 + ( cytotoxic / suppressor ) , CD68 + ( macrophages ) , mast cells , eosinophils and neutrophils were all clearly detected by their relevant monoclonal antibodies or appropriate histochemical staining , but only mast cells tested positive for ER / PR labelling with their polyclonal and monoclonal antibodies .
Output (English): monoclonal antibodies