The subgroup members are treated as in step 2.

子组成员按照步骤2进行处理。

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Cardiovascular events in elderly patients with isolated systolic hypertension. A subgroup analysis of treatment strategies in STOP-Hypertension-2.

单纯性收缩期高血压老年患者的心血管事件：STOP -高血压- 2治疗策略的一个亚组分析。

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The difference in risk-adjusted returns averaged 7.5% a year, based on a subgroup of 2, 300 firms that reported sales and earnings growth sufficient to put them in one of the two quartiles for at least three years in a row.

FORBES: Magazine Article

The D color, flawless clarity stone is part of the Type IIa subgroup, which comprise less than 2 percent of all gem diamonds.

FORBES: 110-Carat Yellow Diamond Sells for a Record $12.3 Million