Prevalence and 30-Day Mortality in Hospitalized Patients With Covid-19 and Prior Lung Diseases Jaime Signes-Costa; Iván J. Núñez-Gil; Joan B. Soriano; Ramón Arroyo-Espliguero; Charbel Maroun Eid; Rodolfo Romero; Aitor Uribarri; Inmaculada Fernández-Rozas; Marcos García Aguado; Víctor Manuel Becerra-Muñoz; Jia Huang; Martino Pepe; Enrico Cerrato; Sergio Raposeiras; Adelina Gonzalez; Francisco Franco-Leon; Lin Wang; Emilio Alfonso; Fabrizio Ugo; Juan Fortunato García-Prieto; Gisela Feltes; Mohammad Abumayyaleh; Carolina Espejo-Paeres; Jorge Jativa; Alvaro López Masjuan; Carlos Macaya; Juan A. Carbonell Asíns; Vicente Estrada;

Effect of the Early Combination of Continuous Positive Airway Pressure and High-Flow Nasal Cannula on Mortality and Intubation Rates in Patients With COVID-19 and Acute Respiratory Distress Syndrome. The DUOCOVID Study Jose Rafael Teran-Tinedo; Jesus Gonzalez-Rubio; Alberto Najera; Miguel Lorente-Gonzalez; Eduardo Cano-Sanz; Isabel De La Calle-Gil; Maria Ángeles Ortega-Fraile; Daniel Carballo-López; Joaquín Hernández-Nuñez; Maria Churruca-Arróspide; Annette Zevallos-Villegas; Daniel López-Padilla; Luis Puente-Maestú; Juan D. Navarro-Lopez; Lydia Jimenez-Diaz; Pedro Landete;

Utility of Differential White Cell Count and Cell Population Data for Ruling Out COVID-19 Infection in Patients With Community-Acquired Pneumonia Ane Uranga; Eloisa Urrechaga; Urko Aguirre; Maider Intxausti; Carlos Ruiz-Martinez; Maria Jose Lopez de Goicoechea; Cristina Ponga; Jose María Quintana; Cristina Sancho; Pilar Sanz; Pedro Pablo España;