Pioneering in the delivery of health care.
D054598:Blue Cross Blue Shield Insurance Plans / Q000266:history; D002140:California; D003695:Delivery of Health Care / Q000266:history*; D049673:History, 20th Century; D007357:Insurance, Physician Services / Q000266:history* / Q000458:organization & administration; D012955:Societies, Medical / Q000266:history