[Supervision of cases with non-negative roentgenphotography; attempt at establishing the medical course of 2,490 cases whose x-rays were non-negative in x-ray examinations].
D035843:Biomedical Research; D006801:Humans; D010808:Physical Examination; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000517:prevention & control*; D014965:X-Rays
TUBERCULOSIS, PULMONARY/prevention and control
Vigilancia de casos con roentgenfotografia no negativa; una tentativa de establecer el destino sanitario de 2.490 casos cuyas roentgenfotografias, no fueron negativas en encuestas roentgenfotografias.