Any long term side effects?We know a woman who just went through...

Any long term side effects?
We know a woman who just went through chemo for breast cancer, last I herd they killed the cancer but now she has a bone disorder (not osteoporosis but like it) and her previously perfect teeth have started to fall out. Lost a good mate back in 2012 and one of the last things he said to me was that reckoned he could have beat it if it he didn't have the chemo.