CJCP     2021 23 (4):  397-401    ISSN: 1008-8830  CN: 43-1301/R Immune dysregulation syndrome caused by STAT3 gene mutation: a complicated case study YAO An-Qi, CHEN Ke-Ke, HE Xiang-Ling, TIAN Xin Department of Pediatric Hematologic Oncology, First Affiliated Hospital of Hunan Normal University/Children's Medical Center of Hunan People's Hospital, Changsha 410005, China Received: 2020-12-30  Revised: 2021-03-01  Online: null Supporting info