@article{shen_peng_bai_xiong_che_jiang_2018,  title={Clinical Observation of the Efficacy of Endoscopic Retrograde Cholangiopancreatography on Elder Choledocholithiasis and Its Effects on the Levels of TNF-α, IL-1, and IL-6},  volume={64},  ISSN={0104-4230},  url={https://doi.org/10.1590/1806-9282.64.11.1012},  DOI={10.1590/1806-9282.64.11.1012},  number={11},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Shen, Yun-zhi and Peng, Xiao-hui and Bai, Yu and Xiong, Bin and Che, Ping and Jiang, De-quan},  year={2018},  month={Nov},  pages={1012–1016} }