This step creates a new database called "TTT," which has the tic-tac-toe schema.

这个步骤创建了一个名为“ttt”的新数据库，用于保存tic - tac - toe模式。

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Results Of the 186 post-exercise syncope patients, 141 had a positive TTT results(75.81%), most of them were male(102/141). Most of the syncope were vasodepressor syncope(106/141).

结果186例运动后晕厥患者有141例在TTT中出现阳性，阳性率75.81%，且以男性（102/141）、血管抑制性晕厥（106/141）患者占大多数；

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Methods TTT were undergone in patients with post-exercise syncope and a negative result in exercise testing.

方法活动平板运动试验结果阴性的运动后晕厥患者，均进行TTT。

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