title: Pulmonary interstitial emphysema.
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000209:etiology*; D011175:Positive-Pressure Respiration / Q000009:adverse effects*; D011656:Pulmonary Emphysema / Q000209:etiology*