FGFR3 and urinary bladder neoplasm: Expression of a cDNA library encoding secreted proteins demonstrated that the EGFR family ligands NRG1, NRG2 and TGF‐alpha and the MET ligand HGF could rescue the FGFR3–TACC3 fusion‐driven bladder tumour cell line RT112 from FGFR inhibition [23].