title: Idiopathic unilateral hyperlucent lung in one monozygotic twin.
mesh_terms: D001996:Bronchopneumonia; D002648:Child; D002675:Child, Preschool; D004200:Diseases in Twins; D005260:Female; D005838:Genotype; D006801:Humans; D007223:Infant; D008297:Male; D011247:Pregnancy; D011651:Pulmonary Artery / Q000002:abnormalities*; D011656:Pulmonary Emphysema / Q000235:genetics / Q000276:immunology; D013577:Syndrome; D014427:Twins