title: Spontaneous pneumothorax and apical lung disease.
mesh_terms: D006112:Gravitation; D006801:Humans; D007511:Ischemia; D008168:Lung / Q000098:blood supply; D008171:Lung Diseases / Q000150:complications*; D008297:Male; D011030:Pneumothorax / Q000209:etiology*; D011187:Posture