id	keyword
aiua-13760	cancer
aiua-13760	bladder
aiua-13760	survival
aiua-13760	patients
aiua-13760	cystectomy
aiua-13760	radical
aiua-13760	yemen
aiua-13760	study
aiua-13760	carcinoma
aiua-13760	mortality
aiua-13760	analysis
aiua-13760	stage