Khder Mustafa, Saifadin, Shaaban Zrar Omar, Kewan Kamal Ahmad, and Lana Basil Khudhur. “The Association of ABO Blood Group Distribution and Clinical Characteristics in Patients With SARS-CoV-2”. The Journal of Infection in Developing Countries 17, no. 01 (January 31, 2023): 18–22. Accessed March 26, 2026. https://jidc.org/index.php/journal/article/view/36795922.