Waldman, Eliseu Alves, Karin Regina Luhm, Sandra Aparecida Moreira Gomes Monteiro, and Fabiana Ramos Martin de Freitas. 2011. “ Surveillance of Adverse Effects Following Vaccination and Safety of Immunization Programs ”. Revista De Saúde Pública 45 (1): 173-84. https://doi.org/10.1590/S0034-89102011000100020.