The organ donor.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001007:Anxiety; D006649:Histocompatibility Antigens; D006801:Humans; D007883:Legislation, Medical; D009042:Motivation; D012306:Risk; D018570:Risk Assessment; D014019:Tissue Donors; D014181:Transplantation Immunology; D014481:United States
D006649:Histocompatibility Antigens