I read in another post where someone said that most doctors "guarantee" their work, meaning that if they transplants don't grow in, they'll either do it again for free, or offer a refund. The website of the doctor that I plan to use (Dr. Cooley) specifically says that the work is not "quaranteed" because everyone reacts differently to transplants. My question is...should this be a cause for concern? And what about other doctors? Did they offer quarentees?

Thanks!