A. A. . Naushad, A. A. . Naushad, L. . Kailas, and S. K. . Sivaraman, “A study of serum zinc levels in children admitted with pneumonia in a tertiary care hospital in India”, Indian J Child Health, vol. 8, no. 12, pp. 426–429, Dec. 2021, doi: 10.32677/ijch.v8i12.3235.