Rafiq, S. (2026). Frequency and Determinants of Ultra-Processed Foods in the Lunchboxes of Under-12 Students in Urban Pakistan: A Cross-Sectional Survey: Determinants of Ultra-Processed Foods in the Lunchboxes of Under-12 Students. Pakistan BioMedical Journal, 9(5), 29–32. https://doi.org/10.54393/pbmj.v9i5.1392