Repeated infections in a 68-year-old man.

@article{Sorenson2002RepeatedII,
  title={Repeated infections in a 68-year-old man.},
  author={Steven M Sorenson and Emelya Moradzadeh and Rajnikant Bakhda},
  journal={Chest},
  year={2002},
  volume={121 2},
  pages={644-6}
}