Weekend and holiday admissions for decompensated heart failure and in-hospital mortality. A cumulative effect of "nonworking" days? - Elola, Javier; Fernandez-Perez, Cristina; del Prado, Nayade; Bernal, Jose Luis; Rosillo, Nicolas; Bas, Marian; Fernandez-Ortiz, Antonio; Barba, Raquel; Carretero-Gomez, Juana; Perez-Villacastin, Julian (Revista Espanola De Cardiologia, 2024)