1.
Arinze Duke George Nwosu, Edmund Ndudi Ossai, Okechukwu Onwuasoigwe, Francis Ahaotu. Oxygen saturation and perceived discomfort with face mask types, in the era of COVID-19: a hospital-based cross-sectional study. Pan Afr Med Jrnl [Internet]. 2021 Jul. 16 [cited 2026 Aug. 12];39(1). Available from: https://www.ajol.info/index.php/pamj/article/view/221761