title: Health physics considerations in the use of a roentgen densitometer.
mesh_terms: D015502:Absorptiometry, Photon / Q000295:instrumentation*; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011829:Radiation Dosage; D012189:Retrospective Studies