The federal initiative in primary care.
D003151:Community Health Centers; D003695:Delivery of Health Care / Q000458:organization & administration; D006291:Health Policy; D006295:Health Resources / Q000600:supply & distribution; D008507:Medically Underserved Area; D011320:Primary Health Care / Q000458:organization & administration*; D012040:Regional Health Planning; D014481:United States