Qi Jia, Dezheng Zhang, Shibing Yang, Chao Xia, Yingjie Shi, Hu Tao, Cong Xu, Xiong Luo, Yuekun Ma, Yonghong Xie. Traditional Chinese medicine symptom normalization approach leveraging hierarchical semantic information and text matching with attention mechanism. Journal of Biomedical Informatics, 116:103718, 2021. [doi]