252: Tocilizumab, Corticosteroids, and Anticoagulation in COVID-19 Patients on Mechanical Ventilation. (January 2021) - Saliaj, Merjona; Li, Matthew; Lakhdar, Sofia; Novikov, Anastasia; Idrees, Zarwa; Medina, Luis; Mantis, Jazila; Trandafirescu, Theo