I. M. Mahmoud

Impact of viral co-infection on clinical outcomes and mortality of COVID-19 patients: a study from Saudi Arabia

M. Alshehri, Usama E. Abu Elhassan, A. Hawan, 2023, Multidisciplinary respiratory medicine.

Prevalence and impact of comorbidities in hospitalized patients with COVID-19: a study from Saudi Arabia

A. Hawan, Naif S. Al Saglan, Mohammed A. Alqahtani, 2023, The Egyptian Journal of Bronchology.

Utility of the 4C ISARIC mortality score in hospitalized COVID-19 patients at a large tertiary Saudi Arabian center

Usama E. Abu Elhassan, Mohammed A. AlFlan, A. Hawan, 2023, Multidisciplinary respiratory medicine.

Clinical Features and Predictors of Mortality in Patients With Acute Pulmonary Embolism: A Retrospective Study From Southern Saudi Arabia

Tayseer M Ghalyoob, Usama E. Abuelhassan, I. M. Mahmoud, 2024, Cureus.