Evaluation of Peripheral Oxygen Saturation after Wearing Different Face Masks and Related Anxiety in Healthcare Workers Amid COVID-19 Pandemic at A Tertiary Care Facility in Province of Sindh. Medical Forum Monthly, [S. l.], v. 32, n. 1, 2024. Disponível em: https://medicalforummonthly.com/index.php/mfm/article/view/2115.. Acesso em: 26 dec. 2025.