Interesting news, as referenced by Web MD. Some dogs can be trained to sniff out lung cancer, on humans breath. Now, we all know dogs have been used to smell out many thins, but this takes on a whole new level. By detecting the cancer on the breath of human counter parts, these trained dogs can save lives, yet again. CT scans and xrays can be used to diagnose cancer, however, early detection can mean the difference between a full chance of recovery and a life long battle.


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