@inbook{1135741800, author={James K. Kim and Lisa Bellil}, editor={Freeman, Brian S. and Berger, Jeffrey S.}, title={Chronic Lower Back Pain}, booktitle={Anesthesiology Core Review: Part Two Advanced Exam}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1135741800} }