I kept doing rounds of chemo, PET scans, MRIs, blood tests, and more chemos until August 2012. None of the chemo drugs had really worked, so my oncologist advised to try something more modern – a stronger chemo (100 times the effect of a standard protocol, although that could have been an exaggeration) to destroy my immune system and rebuild it from the ground up, using my own stem cells as an aid to the recovery process. The stem cells had been previously extracted from my blood in May 2012 and frozen in a tank. This sounds like science fiction stuff, but I witnessed the process and provided the stem cells myself (it’s called an “autologous stem cell transplant”).
Source: Life After Cancer: How the iPhone Helped Me Achieve a Healthier Lifestyle – MacStories