Abnormal position of the brachiocephalic vein.

@article{Smallhorn1985AbnormalPO,
  title={Abnormal position of the brachiocephalic vein.},
  author={Jeffrey F. Smallhorn and Paulo Zielinsky and Robert M. Freedom and Richard D. Rowe},
  journal={The American journal of cardiology},
  year={1985},
  volume={55 1},
  pages={234-6}
}