Antibodies to extractable nuclear antigens (ENAS) in systemic lupus erythematosus patients: correlations with clinical manifestations and disease activity oleh Y. Emad, T. Gheita, H. Darweesh, P. Klooster, R. Gamal, H. Fathi, N. El-Shaarawy, M. Gamil, M. Hawass, R.M. El-Refai, H. Al-Hanafi, S. Abd-Ellatif, A. Ismail, J. Rasker