title: The mask. TB-preventive masks compared.
authors.forename: A J
authors.initials: AJ
authors.lastname: Behrman
mesh_terms: D004634:Emergency Medical Technicians; D004867:Equipment Design; D017408:Guidelines as Topic; D006801:Humans; D017053:Infection Control / Q000379:methods* / Q000592:standards; D016273:Occupational Exposure / Q000517:prevention & control*; D012134:Respiratory Protective Devices; D014376:Tuberculosis / Q000517:prevention & control*; D014481:United States