The rats were divided into four groups: normal control group, kidney-yang deficiency model group, positive drug group, and YOL group.

实验分为正常对照组、肾阳虚模型组、阳性药物治疗组和颐和春治疗组。

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Conclusion YOL has certain effect on improving reproductive capacity of kidney-yang deficiency rats, which is probably related to the regulation of hypothalamus-pituitary - testicular axis.

结论颐和春口服液对肾阳虚大鼠生殖能力有一定改善作用，可能与其对下丘脑-腺垂体-睾丸轴的调节作用有关。

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The group was formed in 1978 as Dev-Sol (Revolutionary Left), a Marxist-Leninist splinter group from a larger group called Dev-Yol (Revolutionary Path).

BBC: Profile: Turkey's Marxist DHKP-C

The Jolla phone - pronounced Yol-la - is due to be released by the end of the year, and will only be sold online.

BBC: Ex-Nokia team makes rival smartphone Jolla