Figure 1. Study flowchart showing the process of constructing the 8-IRlncRNA classifier to predict prognosis of BLCA. BLCA, bladder cancer; FPKM, Fragments per Kilobase Million; SNV, single nucleotide variation; TMB, tumor mutation burden; DElncRNAs, differentially expressed lncRNAs; IRlncRNA, immune-related LncRNA.