Evaluating the impact of the universal infant free school meal policy on the ultra-processed food content of children's lunches in England and Scotland: a natural experiment. - Parnham, Jennie C.; Chang, Kiara; Rauber, Fernanda; Levy, Renata B.; Laverty, Anthony A.; Pearson-Stuttard, Jonathan; White, Martin; von Hinke, Stephanie; Millett, Christopher; Vamos, Eszter P. (International Journal of Behavioral Nutrition & Physical Activity, 2024)