Good news! Bad news? The status of respiratory therapy in the 1980s.
D005069:Evaluation Studies as Topic; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing / Q000706:statistics & numerical data*; D011175:Positive-Pressure Respiration / Q000706:statistics & numerical data*; D012138:Respiratory Therapy / Q000639:trends*; D014481:United States