The best gallstone litholytic was ascertained by comparing the relative gallstone weight reducing rates by the in vitro method for dissolving gallstones.

方法：采用体外溶石法，比较胆石相对减重率，最终确定胆石溶解剂。

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And the census, due to take place in a few weeks, must be fairly conducted so that the Albanians' true demographic weight, claimed by some to be approaching 40%, can be ascertained.

ECONOMIST: Charlemagne

Only a tiny amount, about one part in a thousand of the paint by weight, is needed, and other marine species are not, as far as can be ascertained, affected by it.

ECONOMIST: Monitor: Reducing the barnacle bill | The