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Mass. doctor on COVID-19 spread, need for face coverings
Mass. doctor on best face covering to wear for COVID protection
Masks update: How effective are face masks in stopping the spread of viruses? | COVID-19 Special
Mass. doctor: Boston mask mandate 'will decrease spread' of COVID-19
Some face coverings could help spread COVID-19 | Verify
Why wear a mask to prevent the spread of COVID-19
Mass. doctor on CDC's face-covering changes, state's next move
Mass. doctor on mask mandate ruling, COVID-19 spread
Doctor weighs in on best, worst face masks for combating COVID-19
Doctor Answers COVID-19 Face Mask Questions: Do I Need A Mask? How To Wear Masks Safely?
Mass. doctor on importance of face coverings, testing amid delta variant COVID-19 surge
Face masks: Doctor busts six myths
