@article{mohamed adel aboelela2021strategies,
  title={Ventilation strategies and postoperative pain in laparoscopic cholecystectomy: pulmonary recruitment maneuver versus extended hyperventilation: a prospective randomized study},
  author={mohamed adel aboelela,alrefaey kandeel alrefaey},
  journal={Signa Vitae},
  volume={17},
  number={6},
  pages={119--124},
  doi = {10.22514/sv.2021.073},
  year={2021}
}