An elevated polyclonal free light chain level reflects a strong interferon signature in patients with systemic autoimmune diseases oleh Eléonore Bettacchioli, Christelle Le Gaffric, Margaux Mazeas, Maria Orietta Borghi, Johan Frostegard, Guillermo Barturen, Zuzanna Makowska, Sepideh Babei, Ralf Lesche, Pier Luigi Meroni, Marta E. Alarcon-Riquelme, Yves Renaudineau