Bhanbhro, Bakhtiar Ahmed, et al. “The Association of Serum Sodium Levels With Intraventricular Hemorrhage in Preterm Infants: A Prospective Longitudinal Study from Pakistan”. Pakistan Armed Forces Medical Journal, vol. 72, no. 3, June 2022, pp. 935-38, doi:10.51253/pafmj.v72i3.5001.