there is a youtube video of a surgery where the doctors do it, but i couldnt really see the effect of the injection. however, i never heard of anyone trying this.
but what you could try is this, if you can reach the cancer:
there is this italian doctor who cures cancer by flushing it with some kind of baking soda, his book is "cancer is a fungus". you can watch his interview here:
this is also a comment on the video:
We tried this on our canine. Once or twice a day we flush his cancer. One teaspoon to one cup water. We use 3 cups. The cancer is washing away JUST like in the video. I even have pics to prove it 300% improvement so far.
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GOOD LUCK