See W, Ng YK, Cui L, Kita Y, Ooi SP-L, Lee V, Heng DMK, Lin RTP. Singapore’s efforts to achieve measles elimination in 2018. Western Pac Surveill Response J [Internet]. 2021 Jul. 12 [cited 2024 Apr. 26];12(3):12. Available from: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/704