Amr Ibrahim EL Sayed Shehata, et al. “MAGNESIUM SULPHATE VERSUS SILDENAFIL IN TREATMENT OF PERSISTENT PULMONARY HYPERTENSION IN NEWBORNS”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 29, no. 03, Sept. 2022, pp. 1709-1, https://doi.org/10.53555/jptcp.v29i03.4677.