Marcelino, M., Nobre, E. L., Conceição, J., Lopes, L., Vilar, H., & Jácome De Castro, J. (2009). Superior vena cava syndrome and intrathoracic goiter: an unusual presentation in the 21st century. Acta Médica Portuguesa, 22(3), 299–302. https://doi.org/10.20344/amp.1693