Fernandes, J. F., Pedro, L. M., Freire, J. P., Correia, A., Pedro, M. M., Damião, A., Pereira, R., Alves, J. P., & Martins, C. (1992). Prevalence of extracranial carotid occlusive disease. Non-invasive study. Acta Médica Portuguesa, 5(1), 5–10. https://doi.org/10.20344/amp.3181