Revealing gut microbiota biomarkers associated with melanoma immunotherapy response and key bacteria-fungi interaction relationships: evidence from metagenomics, machine learning, and SHAP methodology - Zhou, Yuhang; Han, Wenjie; Feng, Yun; Wang, Yue; Liu, Xiaolin; Sun, Tao; Xu, Junnan (Frontiers in Immunology, 2025)