@inbook{1131937516,
author={Douglas Keene},
editor={Bajwa, Zahid H. and Wootton, R. Joshua and Warfield, Carol A.},
title={Spinal Injections (Including Epidural Steroids and Medial Branch Blocks)},
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=1131937516}
}