Blue shield of California fosters ambulatory care plan.
D000553:Ambulatory Care / Q000191:economics*; D054598:Blue Cross Blue Shield Insurance Plans / Q000191:economics*; D002140:California; D007342:Insurance Benefits / Q000191:economics; D007348:Insurance, Health / Q000191:economics*; D007357:Insurance, Physician Services / Q000191:economics*; D007359:Insurance, Surgical / Q000191:economics*