Clinical characteristics and survival of children with hypertrophic cardiomyopathy in China: A multicentre retrospective cohort study oleh Wenxiu Chan, Shiwei Yang, Jian Wang, Shilu Tong, Minyin Lin, Pengtao Lu, Ruen Yao, Lanping Wu, Lijun Chen, Ying Guo, Jie Shen, Tingliang Liu, Fen Li, Huiwen Chen, Hao Zhang, Shushui Wang, Lijun Fu