"ENA Screen is an ELISA-based test system for the qualitative screening of IgG class autoantibodies against extractable nuclear antigens (ENA): SS-A 60, SS-A 52, SS-B, Sm, RNP/Sm, Scl-70, and Jo-1, in human serum or plasma samples. This product is intended for professional in vitro diagnostic use only. The test is used as an aid for screening and differentiation of inflammatory autoimmune diseases, e.g. systemic lupus erythematosus, mixed connective tissue disease, Sjoegren's syndrome, scleroderma. Evaluation of a test result should always take into account all clinical and laboratory diagnostic findings."