Incidence of tuberculin test conversion among employees of a metropolitan hospital.
Armstrong
M A
MA
Department of Family Medicine, University of Alabama, Tuscaloosa 35487-0377, USA.
Johnson
R L
RL
D006786:Hospitals, Urban; D006801:Humans; D015994:Incidence; D010564:Personnel, Hospital; D013781:Texas; D014374:Tuberculin Test / Q000706:statistics & numerical data*; D014376:Tuberculosis / Q000453:epidemiology / Q000276:immunology*