Customizing Open Source LLMs for Quantitative Medication Attribute Extraction across Heterogeneous EHR Systems. - Zhe Fei; Mehmet Yigit Turali; Shreyas Rajesh; Xinyang Dai; Huyen Pham; Pavan Holur; Yuhui Zhu; Larissa Mooney; Yih-Ing Hser; Vwani Roychowdhury (CoRR, 2025)