title: [Evaluation of recurrence, etiology and classification of spontaneous pneumothorax in 136 cases].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011030:Pneumothorax / Q000145:classification / Q000209:etiology; D012008:Recurrence; D012737:Sex Factors; D013997:Time Factors