Severity of respiratory failure at admission and in-hospital mortality in patients with COVID-19: a prospective observational multicentre study.
Pierachille SantusDejan RadovanovicLaura SaderiPietro MarinoChiara CogliatiGiuseppe De FilippisMaurizio RizziElisa FranceschiStefano PiniFabio GiulianiMarta Del MedicoGabriella NuceraVincenzo ValentiFrancesco TursiGiovanni SotgiuPublished in: BMJ open (2020)
NCT04307459.