Kasamatsu, A., M. Ota, T. Shimada, M. Fukusumi, T. Yamagishi, A. Samuel, M. Nakashita, T. Ukai, K. Kurosawa, M. Urakawa, K. Takahashi, K. Tsukada, A. Futami, H. Inoue, S. Omori, M. Kobayashi, H. Komiya, T. Shimada, S. Tabata, Y. Yahata, H. Kamiya, F. Yoshimatsu, T. Sunagawa, and T. Saito. “Enhanced Event-Based Surveillance for Imported Diseases During the Tokyo 2020 Olympic and Paralympic Games”. Western Pacific Surveillance and Response, vol. 12, no. 4, Dec. 2021, p. 7, doi:10.5365/wpsar.2021.12.4.903.