@article{xia_2025,  title={Effect of Ki-67 proliferation index on survival in large cell neuroendocrine carcinoma of the lung: correspondence},  volume={71},  ISSN={0104-4230},  url={https://doi.org/10.1590/1806-9282.20242090},  DOI={10.1590/1806-9282.20242090},  number={5},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Xia, Yuanli},  year={2025},  pages={e20242090} }