An Italian Disease-Based Registry of Axial and Peripheral Spondyloarthritis: The SIRENA Study oleh Alen Zabotti, Michele Maria Luchetti, Carlo Francesco Selmi, Roberta Ramonda, Rosa Daniela Grembiale, Lorenzo Dagna, Salvatore D'Angelo, Giacomo Cafaro, Salvatore De Vita, Mara Felicetti, Silvia Marelli, Daniela Frigerio, Ennio Giulio Favalli