HDAC9 and urinary bladder cancer: Keywords included “bladder cancer”, “urothelial carcinoma”, “hydrogel”, “thermogel”, “mucoadhesive”, “intravesical”, “tissue engineering”, “scaffold”, “GelMA”, “decellularized matrix”, “epigenetic”, “DNA methylation”, “histone modification”, “EZH2”, “KDM6A”, “HDAC”, and “DNMT”, combined with Boolean operators.