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A Comparative Effect of Echogenic Needle for Nerve Block on Acute and Chronic Postoperative Pain — Stella
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A Comparative Effect of Echogenic Needle for Nerve Block on Acute and Chronic Postoperative Pain
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A Comparative Effect of Echogenic Needle for Nerve Block on Acute and Chronic Postoperative Pain
Not a traditional drug trial — this study doesn't follow the standard phase structure.
Trial locations
(1 site)
China
He Huang, Chongqing, Chongqing Municipality