Letter: Tuberculosis control--means and strategies.
D001500:BCG Vaccine; D006801:Humans; D007538:Isoniazid / Q000627:therapeutic use; D013019:South Africa; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy / Q000517:prevention & control*; D015030:Zimbabwe
D001500:BCG Vaccine; D007538:Isoniazid