Dexamethasone Treatment in Patients With Severe COVID-19: A Propensity Score-Matched Study - Montazeri, Mahnaz; Pazoki, Marzieh; Hadadi, Azar; Shafeghat, Melika; Veisizadeh, Abdolazim; Khajavi, Mohammad Reza; Najmeddin, Farhad; Kafan, Samira (Acta Medica Iranica, 2022)