Zhu, Chunying, Yingfu Zhang, Wei Li, and Qianqian Li. “Clinical Observation of Individualized Nutritional Formula On inflammation Index, Immune Status and Gastrointestinal Tolerance in Patients With Severe Head Injury”. Pakistan Journal of Medical Sciences 37, no. 4 (May 6, 2021). Accessed June 24, 2021. https://www.pjms.org.pk/index.php/pjms/article/view/3987.