Figure 1From: Clinical trials of investigational agents for IPF: a review of a Cochrane reportMeta-analysis of progression-free survival with pirfenidone in IPF (Adapted from: 1. Spagnolo P, Del Giovane C, Luppi F, et al. Cochrane Database Syst Rev 2010, 9:CD003134. 2. Noble PW, Albera C, Bradford WZ, et al. Lancet 2011, 377:1760-1769. 3. Taniguchi H, Ebina M, Kondoh Y, et al. Eur Respir J 2010, 35:821-829.)Back to article page