EAACI guideline: Preventing the development of food allergy in infants and young children (2020 update) - Halken, S; Muraro, A; de, Silva D; Khaleva, E; Angier, E; Arasi, S; Arshad, H; Bahnson, HT; Beyer, K; Boyle, R; du, Toit G; Ebisawa, M; et al. (PEDIATRIC ALLERGY AND IMMUNOLOGY, 2021)