Use of the hospital emergency room in relation to use of private physicians.
D000293:Adolescent; D000328:Adult; D000553:Ambulatory Care; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006801:Humans; D010820:Physicians / Q000706:statistics & numerical data; D011320:Primary Health Care; D011331:Private Practice / Q000706:statistics & numerical data*