Validation of FEN-COVID phenotypes in hospitalised COVID-19 patients across the first four waves of the pandemic
Maria Giulia Caponcello; María Del Rocío Fernández-Ojeda; Natalia Maldonado; Manuel Diéguez-Serrano; Ana Laura Blanco-Taboada; Paula Olivares Navarro; Adriana Rivera-Sequeiros; Rafael Perera; Jose A. Delgado-Torralbo; Luisa González-Iglesias; Miguel A. Rico-Corral; María Dolores Del Toro; Jesús Rodríguez-Baño; Zaira R. Palacios-Baena; Belén Gutiérrez-Gutiérrez;