1.
right pulmonary artery
2.
left pulmonary artery
5.
IVC
6.
1st rib
7.
lung apex
8.
right ventricular border of heart
9.
left atrial border of heart
10.
posterior costophrenic angle
11. aortic
arch
12.
retrocardiac space
a.
ascending aorta
s.
sternum
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