Spatiotemporal visualization for the global COVID-19 surveillance by balloon chart

by Ming-Fan Pang, Zuo-Ru Liang, Zhi-Da Cheng, Xin-Ping Yang, Jie-Wen Wu, Ke Lyu, Jing-Jing Xi, Zhong-Jie Li, Guo-Qing Shi, Yan-Ping Zhang, George F. Gao, Xiao-Peng Qi, Xiao-Ping Dong
Published 2021-03-01