ALPHARETTA, Ga., Sept. 3, 2020 /PRNewswire/ — Avanos Medical, Inc. (NYSE: AVNS) today announced the publication of a large, randomized, multicentered clinical trial comparing the safety and efficacy of COOLIEF* Cooled Radiofrequency ablation to hyaluronic acid (HA) injection for the management of chronic knee pain caused by osteoarthritis. The results from the clinical trial were published in the Journal of …