| LC control no. | sh 85148749 |
|---|---|
| LC classification | QC480 QC482.3 |
| Topical heading | X-rays |
| Variant(s) | Rays, Roentgen Roentgen rays Roentgenograms |
| See also | Electromagnetic waves Ionizing radiation Radiation Cathode rays Radiography Vacuum-tubes |
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