Predicting survival in patients with severe heart failure: Risk score validation in the HELP‐HF cohort. - Chiarito, Mauro; Stolfo, Davide; Villaschi, Alessandro; Sartori, Samantha; Baldetti, Luca; Lombardi, Carlo Mario; Adamo, Marianna; Loiacono, Ferdinando; Sammartino, Antonio Maria; Riccardi, Mauro; Tomasoni, Daniela; Inciardi, Riccardo Maria; et al. (European Journal of Heart Failure, 2025)