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Differences in changes of vessel-related parameters between groups according to functional assessment. (A) TPVV; (B) the number of pulmonary vessel branches; (C) PAV; (D) the number of pulmonary artery branches; (E) PVV; and (F) the number of pulmonary vein branches. TPVV, total pulmonary vessel volume; PAV, pulmonary artery volume; PVV, pulmonary vein volume.
