Mumtaz, Uzair, Hamid Javaid Qureshi, and Muhammad Usman Bashir. “Serum Zinc and Immunoglobulin G Levels in Lower and Upper / Upper Middle Socioeconomic Groups”. Esculapio Journal of SIMS 12, no. 4 (August 7, 2023): 166–169. Accessed November 21, 2024. https://esculapio.pk/journal/index.php/journal-files/article/view/587.