ED overcrowding, preventive care topics of studies.
Anderson
H J
HJ
D000573:American Hospital Association / Q000458:organization & administration*; D002641:Chicago; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D006302:Health Services Research / Q000639:trends*; D011314:Preventive Health Services / Q000191:economics; D014481:United States