Impact of ambulatory-health-care services on the demand for hospital beds.
D000328:Adult; D000368:Aged; D000553:Ambulatory Care; D002648:Child; D003153:Community Health Services; D005260:Female; D006276:Health Facility Size; D006748:Hospital Departments; D006760:Hospitalization; D006761:Hospitals; D006801:Humans; D007182:Income; D008297:Male; D008404:Massachusetts; D008499:Medical Records; D010044:Outpatient Clinics, Hospital / Q000706:statistics & numerical data*; D011247:Pregnancy; D012946:Social Welfare; D014481:United States