Magnitude of usage of intermittent positive pressure breathing.
D001784:Blood Gas Analysis; D002140:California; D005249:Fees and Charges; D006306:Health Surveys; D006742:Hospital Bed Capacity; D006784:Hospitals, Teaching; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing; D011175:Positive-Pressure Respiration; D013223:Statistics as Topic; D014481:United States; D014768:Virginia