@article{gutteridge1991,
  title={Free radicals in biology and medicine},
  author={J. M. C. Gutteridge},
  year={1991},
  journal={General Pharmacology The Vascular System},
  doi={10.1016/0306-3623(91)90478-o},
  url={https://doi.org/10.1016/0306-3623(91)90478-o}
}