The EFNA4 gene is a potential prognostic biomarker in pancreatic cancer: a bioinformatics analysis - Ye, Qiuwen; Chen, Dong; Liu, Xin; Yang, Burong; Li, Gang; Ma, Jun; Ai, Liang; Li, Zhilin; Yang, Huaiyong; Yu, Tingdong; Tan, Jing (Journal of Gastrointestinal Oncology, 2024)