Answers

2016-03-13T08:49:15+05:30
Nuclear medicine is a medical specialty that involves the application of radioactive substances to diagnose or treat disease.
Cobalt-60 : Formerly used for external beam radiotherapy.
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2016-03-13T08:52:41+05:30
Bismuth-213 : Used for TAT. 

Chromium-51 : Used to label red blood cells and quantify gastro-intestinal protein loss. 

Cobalt-60 : Formerly used for external beam radiotherapy. 

Copper-64 : Used to study genetic diseases affecting copper metabolism, such as Wilson's and Menke's diseases. 
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