[Results of a systematic investigation of teachers].
D001699:Biometry; D005178:Faculty; D008168:Lung; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis* / Q000453:epidemiology*
TEACHERS; TUBERCULOSIS, PULMONARY-STATISTICS AND CONTROL
Resultados de una investigación sistematica en maestros.