Comparison of the demographic characteristics and comorbidities of patients with COVID-19 who died in Spanish hospitals based on whether they were or were not admitted to an intensive care unit Ò. Miró; A. Alquézar-Arbé; P. Llorens; F.J. Martín-Sánchez; S. Jiménez; A. Martín; G. Burillo-Putze; J. Jacob; E.J. García-Lamberetchs; P. Piñera; J. González del Castillo;