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We examined the prevalence of narcotic use before and after total knee arthroplasty (TKA) and its association with post-TKA pain relief and satisfaction. Data on 6364 primary, unilateral TKA patients in a national registry were analyzed. Before TKA, 24% of patients were prescribed one form of narcotic. Of these, 14% reported continued narcotic use at 12(More)
Exploiting advanced layered transition metal oxide cathode materials is of great importance to rechargeable sodium batteries. Layered oxides are composed of negatively charged TMO2 slabs (TM = transition metal) separated by Na+ diffusion layers. Herein, we propose a novel insight, for the first time, to control the electrochemical properties by tuning(More)
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