Zihui Zhao, He Li, Yisong Yao, Yongfeng Zhao, Francesca Serra, Kyogo Kawaguchi, Hepeng Zhang, Masaki Sano. "Integer topological defects offer a methodology to quantify and classify active cell monolayers." Nature Communications (2025). https://doi.org/10.1038/s41467-025-57783-w