The x-ray and radium phosphenes.
D006801:Humans; D010719:Phosphenes; D011883:Radium / Q000494:pharmacology*; D012160:Retina / Q000502:physiology*; D014786:Vision Disorders; D014965:X-Rays
D011883:Radium
RADIUM/effects; RETINA/physiology; ROENTGEN RAYS/effects