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NEJM 376:1175-1177, Ramaswami, Ramya, 2017
Deep-Brain Stimulation for Parkinsons Disease
NEJM 367:1529-1538, Okon, M.S., 2012
Back Surgery -- Who Needs It?
NEJM 356:2239-2245, Deyo,R.A., 2007
Surgical Versus Nonsurgical Treatment for Back Pain
NEJM 357:1255, Copeland,B., 2007