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Diffusion Pharmaceuticals Announces Issuance of U.S. Patent 11,185,523

CHARLOTTESVILLE, Va., Dec. 01, 2021 (GLOBE NEWSWIRE) -- Diffusion Pharmaceuticals Inc. (NASDAQ:DFFN) ("Diffusion" or the "Company"), a biopharmaceutical company developing novel therapies that enhance the body's ability to deliver oxygen to areas where