TY - CHAP M1 - Book, Section TI - Chapter 21. Arthritis & Back Pain A1 - Woods, Ryan P. A1 - Seamon, Jason A2 - Stone, C. Keith A2 - Humphries, Roger L. Y1 - 2011 N1 - T2 - CURRENT Diagnosis & Treatment Emergency Medicine, 7e AB - See Figure 21–1. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/10/12 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=55749765 ER -