Mercado, Erik H., Martha Egoavil, Sara G. Horna, Nancy Torres, Ricardo Velásquez, María E. Castillo, Eduardo Chaparro, et al. “Pneumococcal Serotypes in Carrier Children Prior to the Introduction of Anti-Pneumococcal Vaccines in Peru”. Revista Peruana de Medicina Experimental y Salud Pública 29, no. 1 (January 29, 2014). Accessed October 15, 2024. https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/308.