About the Author

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Erin F. Lawson MD Interventional Pain Management Lexington Brain and Spine Institute Lexington Medical Center 222 E Medical Ln Suite 200 West Columbia, SC 29169 Joel P. Castellanos, MD, FAAPMR Interventional Pain Faculty and Medical Director of Inpatient PM&R University of California, San Diego 9500 Gilman Dr La Jolla, CA 92093