SIGMA: Auto-Regressive VLM for Automated Radiology Report Generation from Longitudinal 3D CT Volumes. - Khang C. Nguyen; Cheng Wang 027; Zong X. Shi; Yue Heng; Chuan Y. Qi; Masahiro Oda 001; Kensaku Mori (ELAMI@MICCAI, 2025)