Casas-Caruajulca, E. , Muguruza-Sanchez, L.J. , Calizaya-Milla, Y.E. and Saintila, J. 2021. Perception of frontal food labeling, purchase and consumption of ultra-processed foods during the COVID-19 quarantine: A cross-sectional study in the Peruvian population: Perception of front-of-package food labeling in COVID-19. Spanish Journal of Human Nutrition and Dietetics. 25, Supl. 2 (Nov. 2021). DOI:https://doi.org/10.14306/renhyd.25.S2.1473.