Profits drop slightly for nation's HMOs, but industry healthier.
D003625:Data Collection; D005376:Financial Management / Q000639:trends*; D006279:Health Maintenance Organizations / Q000191:economics* / Q000706:statistics & numerical data; D006801:Humans; D007182:Income / Q000639:trends*; D020414:Risk Sharing, Financial; D014481:United States