Observational study of haloperidol in hospitalized patients with COVID-19. oleh Nicolas Hoertel, Marina Sánchez-Rico, Raphaël Vernet, Anne-Sophie Jannot, Antoine Neuraz, Carlos Blanco, Cédric Lemogne, Guillaume Airagnes, Nicolas Paris, Christel Daniel, Alexandre Gramfort, Guillaume Lemaitre, Mélodie Bernaux, Ali Bellamine, Nathanaël Beeker, Frédéric Limosin, AP-HP/Universities/INSERM Covid-19 research collaboration and AP-HP Covid CDR Initiative