磷、钾、钙含量亦以高氮用量者较高，然而统计上有不显著、达显著、或极显著水准。

Contents of phosphorus, potassium, AD calcium were also lowered but not all reached significant levels.

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大幅更新医疗设备显然是必要的，但显著提高医疗水准就不仅限如此了。

Improving medical standards significantly will take more than lots of fancy new equipment, necessary though that is.

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主要结果评估：由于比赛水准参差不齐和处理方法不统一，脑震荡的发生率亦显著不同。

Main Outcome Measurements: It was expected that the incidence of concussion would vary significantly due to level of play and different management protocols.

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