@article{peng mingqing2021effect,
  title={The Effect of Prophylactic Ephedrine on Systemic Hypotension Caused by Induction of Anaesthesia with Propofol and Sufentanil in Elderly Hypertensive Patients: A Prospective Randomized, Double-blind Placebo-controlled Clinical Trial},
  author={zhang xinpei,yin kaiyu,huang yabei,peng mingqing},
  journal={Signa Vitae},
  volume={17},
  number={1},
  pages={133--138},
  doi = {10.22514/sv.2020.16.0081},
  year={2021}
}