RT Journal Article SR Electronic T1 Exacerbations of idiopathic pulmonary fibrosis treated with corticosteroids and cyclophosphamide pulses JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1487 OP 1489 DO 10.1183/09031936.00127311 VO 38 IS 6 A1 Morawiec, E. A1 Tillie-Leblond, I. A1 Pansini, V. A1 Salleron, J. A1 Remy-Jardin, M. A1 Wallaert, B. YR 2011 UL http://erj.ersjournals.com/content/38/6/1487.abstract AB