HEPA respirators and tuberculosis in hospital workers.
Sobel
E
E
D003365:Costs and Cost Analysis; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control*; D010564:Personnel, Hospital; D014376:Tuberculosis / Q000517:prevention & control*; D018088:Tuberculosis, Multidrug-Resistant; D012122:Ventilators, Mechanical / Q000191:economics