Moriyama Y, Takaya S, Nishijima T, Sobel HL, Ohmagari N. Maintaining health-system functionality in response to the surge of COVID-19 cases due to the Omicron variant, Japan. Western Pac Surveill Response J [Internet]. 2024 Feb. 6 [cited 2024 May 11];14(5):6. Available from: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/1048