GoT-HCS: Graph-of-Thoughts Enhanced Hierarchical Reasoning for Automated Clinical Hospital Course Summarization. - Asma A. Alhashmi; Khalid N. R. Alharbi; Ahmed Badi Alshammari; Monir Abdullah; Abed Saif Ahmed Alghawli; Chams Sallami; Shouki A. Ebad; Abdulbasit A. Darem (IEEE Access, 2026)