@article{article6c01d3a8,
title   = {Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil},
author = {Oliveira, Janessa de Fátima Morgado de and Boing, Antonio Fernando and Waldman, Eliseu Alves and Antunes, José Leopoldo Ferreira},
year = {2013},
doi = {10.1590/0102-311X00028413},
journal   = {Cadernos de Saúde Pública}
}