Why has vaccination against COVID-19 not been established in Peru, from 3 years of age?

Sosa Flores J.L.; Caman de la Cruz Y.A.; Cubas Pérez D.Y.; Díaz Alarcón P.; Díaz Carranza C.E. · Revista del Cuerpo Medico Hospital Nacional Almanzor Aguinaga Asenjo (2022) · DOI: 10.35434/rcmhnaaa.2022.153.1629

Instituciones: Universidad Nacional Pedro Ruiz Gallo