title: Combination vaccines: development, clinical research and approval
authors.affiliation: Departamento de Imunologia, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, 21045-900, Brasil.
authors.forename: Ribeiro
authors.initials: R
authors.lastname: Daniel
authors.affiliation: Departamento de Imunologia, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, 21045-900, Brasil.
authors.forename: Tadeu
authors.initials: T
authors.lastname: Cláudio