title: Comparison of two hospital tuberculosis surveillance programs: risks and benefits.
mesh_terms: D006801:Humans; D008403:Mass Screening / Q000379:methods; D009786:Occupational Health Services; D009864:Ontario; D010564:Personnel, Hospital; D011050:Policy Making; D013902:Radiography, Thoracic; D012306:Risk; D014397:Tuberculosis, Pulmonary / Q000517:prevention & control*