@article{pimenta_david_baptista_barbosa_varzim_1997,  title={Esophageal carcinoma originating in a duplication cyst: case report},  volume={12},  ISSN={0102-8650},  url={https://doi.org/10.1590/S0102-86501997000300014},  DOI={10.1590/S0102-86501997000300014},  number={3},  journal={Acta Cirúrgica Brasileira},  publisher={Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia},  author={Pimenta, Amadeu P. A. and David, Maria Leonor and Baptista, Manuela B. and Barbosa, Elizabete R. and Varzim, Pedro},  year={1997},  month={Jul},  pages={213–216} }