@inbook{1131939168, author={Howard S. Smith and Samir J. Sheth and David J. Copenhaver and Scott M. Fishman}, editor={Bajwa, Zahid H. and Wootton, R. Joshua and Warfield, Carol A.}, title={Radiation and Imaging Radiation Safety for the Pain Specialist}, booktitle={Principles and Practice of Pain Medicine, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1131939168} }