“Continuous Fentanyl Infusion Reduces Intra-Abdominal Pressure, Postoperative Pain and Normalizes Lungs’ Mechanical Changes in Newborn With Viscera-Abdominal Disproportion in Early Post-Operative Period”. 2021. Pain Medicine 6 (3): 18-23. https://doi.org/10.31636/pmjua.v6i3.2.