@article{sofia papantonaki2021ganglion,
  title={Sphenopalatine Ganglion Block (SPG) for the treatment of migraine},
  author={sofia papantonaki,aikaterini lappa,athanasia dragatsiki,evaggelia gavrilaki},
  journal={Signa Vitae},
  volume={17},
  number={S1},
  pages={25--25},
  doi = {10.22514/sv.2021.170},
  year={2021}
}