Almeida, M.M., Mendonça, M.E., Sousinha, M., Martins, A.G., de Sousa, J.V. and Soares, J. 1991. Application of aspiration cytology in the diagnosis of tumor lesions in children. Acta Médica Portuguesa. 4, 2 (Apr. 1991), 71–5. DOI:https://doi.org/10.20344/amp.3331.