Extrinsic compression of the left main coronary artery by a dilated pulmonary artery: clinical, angiographic, and hemodynamic determinants - Kajita, Luiz Junya; Martinez, Eulogio Emilio; Ambrose, John A.; Lemos, Pedro Alves; Esteves, Antonio; Gama, Marcus Nogueira da; Jatene, Adib; Ramires, José Antônio Franchini (Catheterization and Cardiovascular Interventions, 2001)