Wong HY, Ng YK, Chan KWE, Lee KH. Patent Vitello-Intestinal Duct: A Misdiagnosis of Persistent Umbilical Granuloma. J Neonatal Surg [Internet]. 2018Oct.6 [cited 2025Sep.15];7(4):45. Available from: https://jneonatalsurg.com/index.php/jns/article/view/397