title: Organ shortage clouds new transplant era.
mesh_terms: D000328:Adult; D001926:Brain Death; D005260:Female; D006801:Humans; D008297:Male; D037141:Mandatory Programs; D008875:Middle Aged; D014019:Tissue Donors; D009927:Tissue and Organ Procurement; D014180:Transplantation; D014481:United States