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APA Citation
Pereira, A. R., Cale, R., Ferreira, F., Alegria, S., Sebaiti, D., Martinho, M., Repolho, D., Vitorino, S., Santos, P., Loureiro, M. J., & Pereira, H. (n.d.). complications of balloon pulmonary angioplasty for chronic thromboembolic pulmonary disease according to the classification proposed by the 6th world symposium on pulmonary hypertension. European heart journal, 42, . http://access.bl.uk/ark:/81055/vdc_100144496741.0x000052