[Tuberculin and mass x-ray surveys in industry].
D003625:Data Collection; D006801:Humans; D007221:Industry; D014373:Tuberculin; D014376:Tuberculosis / Q000517:prevention & control*; D014965:X-Rays
D014373:Tuberculin
TUBERCULOSIS/prevention and control
Catastro tuberculino-abreugráfico en la industria.