Anne, Rajendra Prasad, et al. “Real-Time Ultrasound for Umbilical Venous Catheter Insertion in Neonates- a Systematic Review and Meta-Analysis”. The Ultrasound Journal, vol. 17, no. 1, Jan. 2025, p. 4, https://mattioli1885journals.com/index.php/theultrasoundjournal/article/view/18114.