Efek ekstrak etanol 70% rimpang temu kunci (Boesenbergia pandurata (Roxb.) Schlechter) terhadap kadar asam urat darah tikus yang diinduksi kalium oksonat = The effect of 70% ethanolic extract of fingerroot (Boesenbergia pandurata (Roxb.) Schlechter) on plasma uric acid level of rats induced by potassium oxonate