Bell, Leila, Lisa Peters, James D Heffelfinger, Sheena G Sullivan, Alba Vilajeliu, Jinho Shin, Joseph Bresee, and Erica Dueger. “Preparedness for Influenza Vaccination During a Pandemic in the World Health Organization Western Pacific Region”. Western Pacific Surveillance and Response 9, no. 5 (December 20, 2018). Accessed May 5, 2024. https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/621.