Correction: Influenza vaccination hesitancy in five countries of South America. Confidence, complacency and convenience as determinants of immunization rates
by Miguel Ángel González-Block, Emilio Gutiérrez-Calderón, Blanca Estela Pelcastre-Villafuerte, Juan Arroyo-Laguna, Yamila Comes, Pedro Crocco, Andréa Fachel-Leal, Laura Noboa, Daniela Riva-Knauth, Berenice Rodríguez-Zea, Mónica Ruoti, Elsa Sarti, Esteban Puentes-Rosas