The natural history of tuberculosis in the human body. X. Prognosis among students with tuberculin reaction conversion before, during and after school of nursing.
D005500:Follow-Up Studies; D006801:Humans; D008400:Mass Chest X-Ray; D013333:Student Health Services; D013338:Students, Nursing; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis* / Q000517:prevention & control