title: Graft-versus-host disease in the 21st century: new perspectives on an old problem.
authors.affiliation: University of Michigan Medical School, Ann Arbor, MI, USA.
authors.forename: James L M
authors.initials: JL
authors.lastname: Ferrara
authors.forename: John E
authors.initials: JE
authors.lastname: Levine
mesh_terms: D016026:Bone Marrow Transplantation / Q000276:immunology; D006086:Graft vs Host Disease / Q000209:etiology / Q000503:physiopathology*; D018380:Hematopoietic Stem Cell Transplantation / Q000009:adverse effects; D006801:Humans