Method: Gradient test of estriol, destroying test and examining stability of estriol suppository were carried out by using thin-layer chromatography.

方法：用薄层色谱法进行了雌三醇梯度试验，雌三醇栓的破坏试验及稳定性检查。

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Arkan Mouhsin tells the Americans he has an idea who may have been behind the attack, that insurgent elements are still intent on destroying stability.

CNN: Iraqi forces now calling the shots