Identification of Risk Factors Associated With Mortality Among Patients With COVID-19 Using Random Forest Model: A Historical Cohort Study - Moghaddam-Tabrizi, Fatemeh; Omidi, Tahereh; Mahdi-Akhgar, Masoomeh; Bahadori, Robabeh; Valizadeh, Rohollah; Farrokh-Eslamlou, Hamidreza (Acta Medica Iranica, 2021)