Which of the following are true regarding blunt pulmonary trauma?
a) Pulmonary contusions show radiographic resolution in 48 hours
b) bronchial rupture is always accompanied by pneumothorax
c) A normal chest radiograph has a good negative predictive value for aortic: rupture
d) Traumatic diaphragmatic rupture is more common on the left side
e) Aortic rupture most commonly occurs at the aortic root
