1. Division of Rheumatology and Nephrology, Children’s Medical Center, The Second Xiangya Hospital, Central South University,
Changsha, China. mariamemohamedahmada@yahoo.fr
2. Division of Rheumatology and Nephrology, Children’s Medical Center, The Second Xiangya Hospital, Central South University,
Changsha, China. xiaochuanwu@csu.edu.cn