Safety findings after intravenous administration of sulfur hexafluoride microbubbles to 463,434 examinations at 24 centers

Yongning Shang, Xiaoyan Xie, Yan Luo, Fang Nie, Yukun Luo, Xiang Jing, Jintang Liao, Rongqin Zheng, Rong Wu, Xiaomao Luo, Zhiyi Chen, Youfeng Xu, Ruifang Zhang, Hui Wang, Jianjun Yuan, Hongxia Zhang, Jiaan Zhu, Wei Zhang, Litao Ruan, Min Yang, Zhiyan Li, Hong Luo, Qin Chen, Jiping Yan, Chunlin Tang, Liu Deng, Kejing Fang, Yanli Guo, Wen He