Epidemiology of COVID-19 Outbreak in Japan, from January–March 2020 - Furuse, Yuki; Ko, Yura K; Saito, Mayuko; Shobugawa, Yugo; Jindai, Kazuaki; Saito, Tomoya; Nishiura, Hiroshi; Sunagawa, Tomimasa; Suzuki, Motoi; Oshitani, Hitoshi; National Task Force for COVID-19 Outbreak in Japan (Japanese Journal of Infectious Diseases, 2020)