Mi, Junda, and Yong Guo. “Analysis of Changes in the Expression Levels of Peripheral Blood Immunoregulatory T Lymphocytes in Children With Bronchial Asthma Accompanied by Recurrent Infection”. Pakistan Journal of Medical Sciences 38, no. 6 (July 5, 2022). Accessed May 6, 2024. https://pjms.org.pk/index.php/pjms/article/view/5521.