Natural history of tuberculosis in the human body. IX. Prognosis among students with tuberculin reaction conversion before, during and after medical school.
D000328:Adult; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D008875:Middle Aged; D008910:Minnesota; D010996:Pleural Effusion; D013902:Radiography, Thoracic; D012577:Schools, Medical; D013333:Student Health Services; D014374:Tuberculin Test; D014376:Tuberculosis / Q000453:epidemiology* / Q000517:prevention & control; D014397:Tuberculosis, Pulmonary / Q000628:therapy