Walls Ron M Rosen's Emergency Medicine: Concepts & Clinical Practice - 9th - Philadelphia Elsevier 2018 - xxviii, 2443 P xxviii, 2443 P xxviii, 2443 P ( Vol.2) ISBN: 9996111636 Subjects--Topical Terms: Trauma & Emergency Dewey Class. No.: 616.025 / WAL-EME