title: A new acronym: ETs.
authors: J I
authors: JI
authors: Reppun
mesh_terms: D000574:American Medical Association; D015276:Health Care Rationing / Q000191:economics / Q000331:legislation & jurisprudence*; D006801:Humans; D012051:Reimbursement Mechanisms / Q000191:economics / Q000331:legislation & jurisprudence*; D014481:United States