scHilda: Hierarchical Integration of LLM with KG database for single cell type annotation. - Li, Yilang; Sun, Yidi; Geng, Aoyun; Xu, Junlin; Meng, Yajie; Cui, Feifei; Wei, Leyi; Zou, Quan; Li, Xiulai; Zhang, Zilong (PLoS Computational Biology, 2026)