Use of N95, Surgical, and Cloth Masks to Prevent COVID-19 in Health Care and Community Settings: Living Practice Points From the American College of Physicians (Version 1).
Amir QaseemItziar Etxeandia-IkobaltzetaJennifer YostMatthew C MillerGeorge M AbrahamAdam J ObleyMary Ann ForcieaJanet A JokelaLinda L Humphreynull nullRobert M CentorRebecca AndrewsThomas A BledsoeRay HaemeDevan L KansagaraMaura MarcucciPublished in: Annals of internal medicine (2020)