Bismuth chelate as a contrast agent for X-ray computed tomography

Fu Ji-jun, Guo Jun-jie, Qin Ai-ping, Yu Xi-yong, Zhang Qiang, Lei Xue-ping, Huang Yu-gang, Chen Ming-yue, Li Jie-xia, Zhang Yu, Liu Jing-ping, Dang Yuan-ye, Wu Dan, Zhao Xiao-ya, Lin Zhong-xiao, Lin Yin-lei, Li Song-pei, Zhang Ling-yan