High Prevalence of Unrecognized Congenital Heart Disease in School-Age Children in Rural China: A Population-Based Echocardiographic Screening Study

Qu‐ming Zhao, Hongyan Chen, Guowen Zhang, Wei-Cheng Chen, Bing Jia, Fang Liu, Xiaojing Ma, Weili Yan, Conway Niu, Guoying Huang