Cardiovascular changes in cluster headache.

@article{Sacquegna1985CardiovascularCI,
  title={Cardiovascular changes in cluster headache.},
  author={T. Sacquegna and Pietro Cortelli and Roberto Amici and Emilio Merlo Pich and Piero de Carolis and A. Baldrati and Fabio Cirignotta and R D'Alesandro and Elio Lugaresi},
  journal={Headache},
  year={1985},
  volume={25 2},
  pages={75-8}
}