title: Tracheal agenesis.
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis; D004947:Esophagus / Q000002:abnormalities; D006801:Humans; D007231:Infant, Newborn; D007830:Larynx / Q000002:abnormalities; D008297:Male; D012127:Respiratory Distress Syndrome, Newborn / Q000209:etiology*; D014132:Trachea / Q000002:abnormalities*