Fig. 1From: Evaluation for clinical benefit of metformin in patients with idiopathic pulmonary fibrosis and type 2 diabetes mellitus: a national claims-based cohort analysisFlow diagram of OptumsLab® cohort creation. IPF idiopathic pulmonary fibrosis, T2DM Type 2 diabetes mellitus, T1DM Type 1 diabetes mellitusBack to article page