@article{huang_gu_ji_li_xu_guo_xu_2021,  title={A NEW MIXED SURGICAL TREATMENT FOR GRADES III AND IV HEMORRHOIDS: MODIFIED SELECTIVE HEMORRHOIDECTOMY COMBINED WITH COMPLETE ANAL EPITHELIAL RETENTION},  volume={34},  ISSN={0102-6720},  url={https://doi.org/10.1590/0102-672020210002e1594},  DOI={10.1590/0102-672020210002e1594},  number={2},  journal={ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)},  publisher={Colégio Brasileiro de Cirurgia Digestiva},  author={HUANG, Hua and GU, Yunfei and JI, Lijiang and LI, Youran and XU, Shanshan and GUO, Tianwei and Xu, Minmin},  year={2021},  pages={e1594} }