Giné, Carlos, et al. “Neonatal Ultrasound for Anorectal Malformations in Male Newborns Without Perineal Fistula: A Good Diagnostic Tool for A Safe One-Staged Surgery”. Archives of Clinical and Medical Case Reports, vol. 5, no. 6, Nov. 2021, pp. 811-20, https://fortunejournals.org/ojs/index.php/acmcr/article/view/22555.