Connection between lower natural killer function and susceptibility to viral infection in cluster headache.

@article{Giacovazzo1987ConnectionBL,
  title={Connection between lower natural killer function and susceptibility to viral infection in cluster headache.},
  author={Mario Giacovazzo and Giuseppe Stirparo and L De Stefano and Cristina Rinaldi-Garaci and Enzo Bonmassar and Paolo Martelletti},
  journal={Cephalalgia : an international journal of headache},
  year={1987},
  volume={7 Suppl 6},
  pages={84-6}
}