Use the body's "repair kit".
Reeve
C
C
D000328:Adult; D001675:Bioethics; D004622:Embryo, Mammalian / Q000166:cytology; D015316:Genetic Therapy; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D009316:National Institutes of Health (U.S.); D012106:Research / Q000331:legislation & jurisprudence*; D013234:Stem Cells / Q000166:cytology*; D014481:United States