Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(Upper panels) One-way paradigm in which transplantation is conceived as involving a unidirectional immune reaction: (a) host-versus-graft (HVG) with whole organs and (b) graft-versus-host (GVH) with bone marrow or other lymphopoietic transplants. (Lower panels) Two-way paradigm in which transplantation is seen as a bidirectional and mutually cancelling immune reaction that is (c) predominantly HVG with whole organ grafts, and (d) predominantly GVH with bone marrow grafts.
