title: Graft-versus-host disease.
mesh_terms: D016026:Bone Marrow Transplantation; D005260:Female; D006086:Graft vs Host Disease / Q000209:etiology*; D006801:Humans; D011247:Pregnancy; D014185:Transplantation, Isogeneic; D014427:Twins; D014430:Twins, Monozygotic