Assertion: pneumothorax | /r/CreatedBy | a blunt
Facets:
Source sentences:
text: A pneumothorax can be caused by a blunt or penetrating chest injury, certain medical procedures, or damage from underlying lung disease.
text: A pneumothorax can be caused by blunt or penetrating chest trauma, positive pressure ventilation, or can occur spontaneously.
text: A pneumothorax can be caused by a blunt or penetrating chest injury, certain medical procedures, or damage from underlying lung disease.