Impact of COVID-19 in the in-hospital cardiac arrest activations: Retrospective study Ghali Ballout; Marta Magaldi Mendaña; Bartomeu Ramis Bou; Cristian Torres Quevedo; Adriana Capdevila Freixas; Silvia Moreno-Jurico; Enrique Jesús Carrero Cardenal; Jaime Fontanals Dotras;