Features of clinical extensive chronic graft-versus-host disease in patients transplanted before 1980 (open columns,n= 47) and from 1980 to 1999 (shaded columns,n= 145). Data are from a single transplant center.

Reprinted with permission from Sullivan KM. Graft-versus-host disease. In: Thomas ED, Blume KG, Forman SJ, ed. Hematopoietic Cell Transplantation (ed 2nd). Malden, MA: Blackwell Science, Inc.; 1999:515-536.