| http://www.w3.org/ns/prov#value | - Accumulation of air or gas in the pleural cavity, occurring as a result of disease or injury, or sometimes induced to collapse the. ??? ???pneumothorax: Definition from ???, Learn about Pneumothorax, including Pneumothorax symptoms and Pneumothorax Treatment Information. ??? ???Pneumothorax???, Read about pneumothorax (collapsed lung), causes, symptoms such as sudden chest pain, shortness of breat
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