Administrative Databases and Diagnostic Therapeutic and Assistance Paths -PDTA- in the Monitoring Treatment of Rheumatoid Arthritis: The Experience of ATS Pavia oleh Bruno GM, Valentino MC, Brunetti A, Di Matteo S, Begovic I, Croce E, Sakellariou G, Bugatti S, Perotti P, Vecchio S, Migliazza S, Langella R, Colombo GL