A paradox in heart and lung rejection.

@article{Westra1990API,
  title={A paradox in heart and lung rejection.},
  author={A L Westra and Jochum Prop and Karel C. Kuijpers and C. R. H. Wildevuur},
  journal={Transplantation},
  year={1990},
  volume={49 4},
  pages={
          826-8
        }
}