@article{franco_marta_2020,  title={Timing factors as prognostic variables in patients with head and neck squamous cell carcinoma treated with adjuvant radiotherapy: a literature review},  volume={66},  ISSN={0104-4230},  url={https://doi.org/10.1590/1806-9282.66.3.380},  DOI={10.1590/1806-9282.66.3.380},  number={3},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Franco, Rejane and Marta, Gustavo Nader},  year={2020},  month={Mar},  pages={380–384} }