Construction and use of a low cost 60 mm.  photofluorographic unit for mass chest survey.
D005471:Fluoroscopy / Q000295:instrumentation*; D006801:Humans; D010779:Photofluorography; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000517:prevention & control*
FLUOROSCOPY/apparatus and instruments; TUBERCULOSIS, PULMONARY/prevention and control