Anatomy and duplex characteristics of the normal deep veins.

@article{Zwiebel1988AnatomyAD,
  title={Anatomy and duplex characteristics of the normal deep veins.},
  author={William J. Zwiebel},
  journal={Seminars in ultrasound, CT, and MR},
  year={1988},
  volume={9 4},
  pages={269-76}
}