title: Spontaneous pneumothorax and multiple sclerosis.
mesh_terms: D000208:Acute Disease; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008910:Minnesota; D009103:Multiple Sclerosis / Q000150:complications* / Q000453:epidemiology; D011014:Pneumonia / Q000150:complications; D011030:Pneumothorax / Q000150:complications* / Q000453:epidemiology / Q000209:etiology