title: Replacement parts: organ transplants and stem cells.
mesh_terms: D006084:Graft Rejection / Q000517:prevention & control; D006801:Humans; D016377:Organ Transplantation / Q000639:trends*; D033581:Stem Cell Transplantation; D013234:Stem Cells / Q000502:physiology; D014181:Transplantation Immunology