@inbook{1107200084, author={Sean Li and Peter S. Staats}, editor={Diwan, Sudhir and Staats, Peter S.}, title={Permanent Implant}, booktitle={Atlas of Pain Medicine Procedures}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1107200084} }