@article{nahas_nahas_marques_schmerling_bustamante-lopez_ribeiro junior_cecconello_2015,  title={Gastrointestinal stromal tumor of the rectum treated with neoadjuvant Imatinib followed by transanal endoscopic microsurgery},  volume={28},  ISSN={0102-6720},  url={https://doi.org/10.1590/S0102-67202015000100022},  DOI={10.1590/S0102-67202015000100022},  number={1},  journal={ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)},  publisher={Colégio Brasileiro de Cirurgia Digestiva},  author={NAHAS, Caio Sergio Rizkallah and NAHAS, Sergio Carlos and MARQUES, Carlos Frederico Sparapan and SCHMERLING, Rafael and BUSTAMANTE-LOPEZ, Leonardo Alfonso and RIBEIRO JUNIOR, Ulysses and CECCONELLO, Ivan},  year={2015},  pages={87–89} }