The operation.
D001062:Appendectomy; D001706:Biopsy; D006084:Graft Rejection; D006801:Humans; D016030:Kidney Transplantation; D008722:Methods; D009392:Nephrectomy; D013154:Spleen / Q000276:immunology; D013156:Splenectomy; D014019:Tissue Donors; D014184:Transplantation, Homologous; D014513:Ureter / Q000601:surgery; D014546:Urinary Catheterization