 @article{guo_zhang_wang_ge_2017,  title={Peratrial Device Closure of Atrial Septal Defect Under Transesophageal Echocardiographic Guidance without Fluoroscopy Compared to Conventional On-Pump Surgical Closure},  volume={32},  ISSN={0102-7638},  url={https://doi.org/10.21470/1678-9741-2016-0021},  DOI={10.21470/1678-9741-2016-0021},  number={1},  journal={Brazilian Journal of Cardiovascular Surgery},  publisher={Sociedade Brasileira de Cirurgia Cardiovascular},  author={Guo, Zhixiang and Zhang, Chengxin and Wang, Huan and Ge, Shenglin},  year={2017},  month={Jan},  pages={38–42} }