@article{gonzález-block_portillo_laguna_comes_crocco_fachel-leal_noboa_knauth_rodríguez-zea_ruoti_et al._2022,  title={Barriers and facilitators to influenza vaccination observed by officers of national immunization programs in South America countries with contrasting coverage rates},  volume={38},  ISSN={0102-311X},  url={https://doi.org/10.1590/0102-311X00045721},  DOI={10.1590/0102-311X00045721},  number={3},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={González-Block, Miguel Ángel and Portillo, Sandra Patricia Díaz and Laguna, Juan Arroyo and Comes, Yamila and Crocco, Pedro and Fachel-Leal, Andréa and Noboa, Laura and Knauth, Daniela Riva and Rodríguez-Zea, Berenice and Ruoti, Mónica and Sarti, Elsa and Puentes, Esteban},  year={2022},  pages={e00045721} }