One year ago I had a failed hair transplant. Should the doctor do something about this failure?

?The law in most states forbid a surgeon from a guarantee for any surgery. Think about it, if you had cancer and your surgeon guaranteed that he would cure you, that is impossible and illegal. So a hair transplant is the same thing; however, any good doctor should warrant his work regardless of the fault. If there is some failure of any part of the hair transplant process, or any complication that should arise, I am always good to make it right. I want patient satisfaction 100% of the time