Concordance of Serologic Data in Juvenile Dermatomyositis: Interferon-Alpha Induction and Activity, and Detectable Levels of Anti-Ro and Anti-La Autoantibodies Balboni, I., Niewold, T., Morgan, G., Limb, C., Eloranta, M., Utz, P., Roennblom, L., Pachman, L. ACADEMIC PRESS INC ELSEVIER SCIENCE. 2009: S134