title: EHR vendors with most installations in ambulatory-care offices.
mesh_terms: D000554:Ambulatory Care Facilities / Q000191:economics* / Q000706:statistics & numerical data; D003132:Commerce / Q000191:economics / Q000706:statistics & numerical data; D057286:Electronic Health Records / Q000191:economics* / Q000706:statistics & numerical data; D006801:Humans; D014481:United States