Blue Cross conversions.
McPherson
Bruce
B
D054598:Blue Cross Blue Shield Insurance Plans / Q000191:economics / Q000458:organization & administration*; D005249:Fees and Charges / Q000639:trends; D005102:Health Expenditures / Q000639:trends*; D006302:Health Services Research; D006801:Humans; D007182:Income / Q000639:trends; D017057:Medically Uninsured; D009939:Organizations, Nonprofit / Q000191:economics; D010067:Ownership / Q000191:economics*; D013221:State Health Plans; D014481:United States