Is Fine-Tuning Useful in EHR-Based Prediction Models? a Use Case on Mortality Prediction with Longitudinal Data from Spanish (SIDIAP) and UK (CPRD) Populations Aged Over 65 Years. - Lucia A. Carrasco-Ribelles; Margarita Cabrera-Bean; Albert Prats-Uribe; Sara Khalid; Concepción Violán (CBMS, 2025)