I.N.H. prophylaxis--19.10.1972.
D000328:Adult; D006801:Humans; D007538:Isoniazid / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D008906:Mining; D009784:Occupational Diseases / Q000517:prevention & control*; D014376:Tuberculosis / Q000517:prevention & control*
D007538:Isoniazid