Chihiro Wakabayashi, Masayoshi Matsumoto, Shiho Sato, Yui Nakaizumi, Yuri Matsubara, Daisuke Matsubara, Yoshihisa Aiba, Izumi Oki, Yosikazu Nakamura, Hiroshi Yanagawa. "Longitudinal characterization of COVID-19 across a surveillance transition in Japan: thirteen epidemic waves, 2020–2025." Scientific Reports, 2026. doi:10.1038/s41598-026-51317-0