E, Jianfei, Dengchao Wang, Wei Wei, and Zongyao Chen. “Umbilical Abscess Caused by Helcococcus Kunzii: A Case Report and Literature Review”. The Journal of Infection in Developing Countries 18, no. 10 (October 31, 2024): 1632–1635. Accessed March 26, 2026. https://jidc.org/index.php/journal/article/view/39616477.