Q ) Which is a true vascular ring?
a) Pulmonary artery sling
b) Double aortic arch
c) Cervical aortic arch
d) Origin of subclavian artery from descending aorta
Q ) Which is a true vascular ring?
a) Pulmonary artery sling
b) Double aortic arch
c) Cervical aortic arch
d) Origin of subclavian artery from descending aorta