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  1. Why wearing a mask is the most important thing we can do to …

  2. COVID-19: When should you wear a face mask?

  3. COVID-19: How much protection do face masks offer?

  4. Mayo Clinic research confirms critical role of masks in preventing ...

  5. COVID-19: Mayo Clinic expert answers questions about masks …

  6. Treating skin irritations from wearing face masks

  7. WHO updates guidance on masks - here's what you need to know

  8. Benefits of kids wearing masks in school - Mayo Clinic News …

  9. Mayo Clinic to ease universal face mask requirement

  10. Study shows masks offer protection as COVID-19 infections tick up