HEPA respirators and tuberculosis in hospital workers.
Sherertz
R J
RJ
Streed
S A
SA
D006801:Humans; D008397:Masks; D009784:Occupational Diseases / Q000517:prevention & control*; D010564:Personnel, Hospital; D014376:Tuberculosis / Q000517:prevention & control*; D012122:Ventilators, Mechanical