Developing a definition of death.
D001926:Brain Death; D003643:Death; D006321:Heart / Q000502:physiology; D006801:Humans; D007603:Jurisprudence; D012119:Respiration; D012151:Resuscitation; D009626:Terminology as Topic; D014019:Tissue Donors; D014184:Transplantation, Homologous; D014481:United States