title: The burden of disease and the need for a simple staging system in idiopathic pulmonary fibrosis.
authors.affiliation: 1 University College Cork Cork, Ireland and.
authors.forename: Oisin J
authors.initials: OJ
authors.lastname: O'Connell
authors.forename: Jim J
authors.initials: JJ
authors.lastname: Egan
mesh_terms: D017326:Clinical Trials, Phase III as Topic / Q000379:methods*; D005260:Female; D006801:Humans; D054990:Idiopathic Pulmonary Fibrosis / Q000401:mortality*; D008297:Male; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D012107:Research Design