Funding for this research was provided by:
Fondo Nacional de Desarrollo Científico y Tecnológico (161436)
International Development Research Centre (108180-001, 107731-002)
Received: 23 September 2019
Accepted: 25 June 2020
First Online: 10 July 2020
Change Date: 5 December 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: The Ethics Review Board of the Institute of Nutrition and Food Technology, University of Chile approved the study protocol. All mothers signed an informed consent on behalf of their children, who were not old enough to give their assent.
: Not applicable.
: The authors declare that they have no competing interests.