Sarah has thyroid cancer. As part of her treatment, she is given an injection of radioactive iodine (I-131) that will be absorbed by her thyroid, helping target those cells. This is an example of

A. low-dose internal radiation.
B. chemotherapy.
C. interstitial brachytherapy.
D. systemic radiation therapy.
E. external radiation therapy.


Answer: D

Biology & Microbiology

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Body cells of human females contain _____

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