Major systemic to pulmonary collateral artery with absent pulmonary arteries proximal to hilar bifurcation
major systemic to pulmonary collateral artery with absent pulmonary arteries proximal to hilar bifurcation
Major systemic to pulmonary collateral artery with absent pulmonary arteries proximal to hilar bifurcation
major systemic to pulmonary collateral artery with absent pulmonary arteries proximal to hilar bifurcation