| http://www.w3.org/ns/prov#value | - Yet another embodiment of the present invention is a method of detecting and/or measuring a COX-2 activity in a biological sample, comprising: extracting the sample at least one time with a first solvent, evaporating the solvent to leave a residue, dissolving the residue in a second solvent, separating at least one PG-G from the dissolved residue with a separation device, lyophilizing the separate
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