“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, vol. 24, no. 1, pp. 45–53, Jun. 2025, doi: 10.5281/zenodo.15625603.