 @article{alshewered_al-naqqash_2019,  title={Rectal cancer and chemoradiation in Iraq: systematic review and meta-analysis},  volume={39},  ISSN={2237-9363},  url={https://doi.org/10.1016/j.jcol.2019.06.003},  DOI={10.1016/j.jcol.2019.06.003},  number={4},  journal={Journal of Coloproctology (Rio de Janeiro)},  publisher={Sociedade Brasileira de Coloproctologia},  author={Alshewered, Ahmed Salih and Al-Naqqash, Manwar abdulelah},  year={2019},  month={Oct},  pages={309–318} }