HMOs increase staff and alter strategy for CHAMPUS account.
D003284:Contract Services / Q000458:organization & administration*; D005376:Financial Management / Q000458:organization & administration*; D006264:Health Benefit Plans, Employee / Q000458:organization & administration*; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D007348:Insurance, Health / Q000458:organization & administration*; D008887:Military Medicine / Q000458:organization & administration*; D014481:United States