Interhospital transport of COVID-19 patients on ECMO and comparison with historic controls P. Blanco-Schweizer, J. Sánchez-Ballesteros, R. Herrán-Monge, A. Prieto-deLamo, J.A. de Ayala-Fernández, M. García-García

Comparison of four prognostic scales for predicting mortality in patients with severe maternal morbidity B. Jonguitud López, D. Álvarez Lara, M.A. Sosa Medellín, F. Montoya Barajas, G.C. Palacios Saucedo

Comparison of the characteristics of patients with type 2 coronavirus disease and seasonal influenza admitted to an intensive care unit A. González-Castro, A. Fernandez-Rodríguez, E. Cuenca Fito, B. Suberviola-Cañas, Y. Peñasco, J.C. Rodríguez-Borregán