CHEN Yougan, SUN Jian, LI Guang, ZHANG Dengxin, XIANG Congming, DENG Yuanyuan, DING Xiqi. Value of carbon dioxide for cystoscopy and its clinical application in the diagnosis of adult patients with hematuriaJ. Journal of Clinical Medicine in Practice, 2013, (1): 44-46. DOI: 10.7619/jcmp.201301013