Prevalence of malnutrition and its impact on mortality in internal medicine patients in Spain: an analysis based on the minimum basic data set 2018-2022 - Rueda-Camino, J A; San Roman, J; Gaviria, A Zapatero; Mota, A Asenjo; Lebrato, J Canora; Garcia, P de Peralta; Martin, R Barba (REVISTA CLINICA ESPANOLA, 2026)