The Face mask and changes in the blood oxygen saturation of theatre workers at the Nnamdi Azikiwe University Teaching Hospital, Nnewi, Anambra State: Blood Oxygen changes among theatre users using facemask in Nigeria. Trop J Med Res [Internet]. 2025 Jun. 9 [cited 2026 Oct. 23];24(1):45-53. Available from: https://tjmr.org.ng/index.php/tjmr/article/view/197