Wang, Xia, Shuyan Quan, Zhifeng Wu, Yuping Zhang, Enyi Wen, Jingbin Huang, and Wang Yang. 2024. “Application of Nirmatrelvir Ritonavir for the Treatment of Severe COVID-19 in a 3-Year-Old Child”. The Journal of Infection in Developing Countries 18 (11):1682-86. https://doi.org/10.3855/jidc.18685.