His Hutch team found that leukemia patients who received bone marrow transplants from an identical twin had far higher relapse rates than people who used a closely matched, but not identical, sibling. (sciencemag.org)
Firstly, it was disappointing that there were not more long term follow up medication trials; the few that exist show high relapse rates. (ebmh.bmj.com)
This is a critical reason for the alarmingly high relapse rate after seemingly successful therapy. (thecouplesclinic.com)