At the early stage, the impairment locates at central area in the former while at peripheral area in the latter.

结论：青光眼与垂体腺瘤均可有视野的损害，前者的改变早期位于中心，而后者可以位于周边。

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The regression coefficient between corneal power and the refractive error increased from apex to peripheral area.

角膜中央到周边曲率与等效球镜度的回归系数逐渐增加。

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The other end of economic studies will be the overlapping or peripheral area where all the subdisciplines of economics meet with other disciplines.

经济学研究的尽头就在于经济学所有各个分支学科同其他学科的交叉地带或边缘地带。

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After a very small net gain over the first 30 or so hours of trading this week, well received debt auctions from the peripheral euro area countries of Ireland, Greece and Spain spurred bullish momentum in the euro, driving it almost 90 pips higher.

FORBES: Euro Rises Ahead Of FOMC, Bank Of Japan Waits

Spain had successfully dislodged itself from the group of peripheral euro-area countries with the most punishing bond yields.

ECONOMIST: The euro crisis

Yields rose on peripheral debt with that on the Spanish benchmark rising to a euro area era high while Italian yields breached 6% for the first time since 1997.

FORBES: Selling Of PIIGS Debt Slows On Suspected ECB Purchases