Re:having RTFA, (Score 1)

The process of removing cells from the body isn't mutagenic. You are correct, however, in the assumption that it isn't ready for clinical practice quite yet, but it should be within a few years. At the moment, this only looks useful for single-gene traits caused by simple mutations (i.e. small deletions/insertions or single nucleotide polymorphisms, as opposed to major chromosomal rearrangements).