CJCP     2021 23 (3):  265-270    ISSN: 1008-8830  CN: 43-1301/R Correlation between bronchial dilation test and asthma control level in children with asthma LIU Xin, FENG Yong, SHANG Yun-Xiao Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China Received: 2020-12-06  Revised: 2021-01-12  Online: null Supporting info