TY - RPRT TI - GapDream: Active Synthetic Evidence Acquisition for Long-Tailed Medical Imaging AU - Chen, J. AU - Chen, W. PY - 2026 DO - 10.64898/2026.09.21.753385 UR - https://www.biorxiv.org/content/10.64898/2026.09.21.753385v1 ID - 10.64898/2026.09.21.753385 ER -