8. Chronically receiving corticosteroid more than 10 mg of prednisone or equivalent, immunosuppressors or antifibrotic agents, including pirfenidone, D-penicillamine, colchicine, ciclosporin A, TNF-alpha antagonists, imatinib, IFN-gamma, azathioprine, cyclophosphamide, within the 30 days prior to inclusion.