Ambulatory medical care data: analysis of utilization data.
D000553:Ambulatory Care; D001294:Attitude to Health; D003695:Delivery of Health Care; D003710:Demography; D006285:Health Planning; D006801:Humans; D007256:Information Systems; D008499:Medical Records; D009017:Morbidity; D010548:Personal Health Services / Q000706:statistics & numerical data; D011996:Records; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D013812:Therapeutics; D013997:Time Factors; D014481:United States