TY - RPRT TI - A mechanism-annotated benchmark reveals limited fidelity to drug-response signatures in single-cell perturbation models AU - Li, L. AU - Duan, S. AU - Zha, X. AU - Ye, F. AU - Zhang, Y. AU - Zhang, X. AU - Cao, Y. AU - Liu, C. PY - 2026 DO - 10.64898/2026.08.19.745729 UR - https://www.biorxiv.org/content/10.64898/2026.08.19.745729v1 ID - 10.64898/2026.08.19.745729 ER -