Intensive care unit admission and associated factors in patients hospitalised for COVID-19: A national retrospective cohort study in Iran
Neda Izadi, Fatemeh Shahbazi, Yaser Mokhayeri, Arash Seifi, Niloufar Taherpour, Ahmad Mehri, Saeid Fallah, Sahar Sotoodeh Ghorbani, Kosar Farhadi-Babadi, Mohammad Reza Taherian, Elham Rahimi, Koorosh Etemed, Seyed Saeed Hashemi Nazari
BMJ Open Aug 2023, 13 (8) e070547; DOI: 10.1136/bmjopen-2022-070547