Sosa Flores JL, Caman de la Cruz YA, Cubas Pérez DY, Díaz Alarcón P, Díaz Carranza CE. Why has vaccination against COVID-19 not been established in Peru, from 3 years of age?. Rev. Cuerpo Med. HNAAA [Internet]. 2022 Nov. 14 [cited 2024 May 19];15(3):480-1. Available from: http://www.cmhnaaa.org.pe/ojs/index.php/rcmhnaaa/article/view/1629