Marques, D., Moura-Carvalho, C., Mateus, M.C. and Batoréo, M.T. 1980. Aspiration cytology of thyroid tumors. 6 years’ experience. Acta Médica Portuguesa. 2, 3 (Jun. 1980), 187–194. DOI:https://doi.org/10.20344/amp.3943.