STUDIES ON X-RAY EFFECTS : V. EFFECT OF SMALL DOSES OF X-RAYS OF LOW PENETRATION ON THE LYMPHOID TISSUE OF MICE.

@article{Nakahara1919STUDIESOX,
  title={STUDIES ON X-RAY EFFECTS : V. EFFECT OF SMALL DOSES OF X-RAYS OF LOW PENETRATION ON THE LYMPHOID TISSUE OF MICE.},
  author={Waro Nakahara and James B. Murphy},
  journal={Journal of Experimental Medicine},
  year={1919},
  volume={31},
  pages={13-29}
}
A dose of x-rays governed by the following factors induces a stimulation of lymphoid tissue in mice: spark-gap (7/8) inch, milliamperage 25, distance 8 inches, time of exposure 10 minutes. Within 4 days after this dose there appeared an abnormally large number of mitotic figures in the lymphoid tissue of spleen and lymph glands, indicating an acceleration of the proliferative activity of the tissue. 

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