@article{de mello_2012,  title={Sacrum osteosarcoma after pelvic radiation for uterine cervical cancer: highlighted issues},  volume={130},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31802012000500013},  DOI={10.1590/S1516-31802012000500013},  number={5},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={De Mello, Ramon Andrade},  year={2012},  pages={344–345} }