Standard survey procedure for photofluorographic X-ray machines.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001835:Body Weight; D002170:Canada; D003300:Copper; D004781:Environmental Exposure; D004864:Equipment and Supplies / Q000592:standards; D005069:Evaluation Studies as Topic; D005260:Female; D005471:Fluoroscopy / Q000295:instrumentation*; D006801:Humans; D008297:Male; D008452:Maximum Allowable Concentration; D008875:Middle Aged; D010779:Photofluorography / Q000295:instrumentation*; D012044:Regression Analysis; D013909:Thorax / Q000033:anatomy & histology; D014481:United States
D003300:Copper