Safety of pirfenidone in patients with idiopathic pulmonary fibrosis (IPF): Integrated analysis of cumulative data from 5 clinical trials - Costabel, U; Lancaster, L; Albera, C; Bradford, WZ; Fagan, EA; Fishman, R; Glaspole, I; Glassberg, MK; King, TE; Lederer, DJ; Lin, Z; Nathan, SD; Pereira, CA; Swigris, JJ; Valeyre, D; Noble, PW (Pneumologie, 2016)