Rafiq, Sadia. 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.